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Recent questions tagged ch16
Questions
Three numbers are chosen from 1 to 20.Find the probability that they are not consecutive.
cbse
math
class11
ch16
probability
exemplar
q19
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
In a non-leap year,the probability of having 53 tuesdays or 53 wednesdays is
cbse
math
class11
ch16
probability
exemplar
q18
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
Determine the probability P,for each of the following events.Sum of 6 appears in a single toss of a pair of fair dice.
cbse
math
class11
ch16
probability
exemplar
q17-d
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
Determine the probability P,for each of the following events.A king ,9 of hearts,or 3 of spades appears in drawing a single card from a well shuffled ordinary deck of 52 cards.
cbse
math
class11
ch16
probability
exemplar
q17-c
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
Determine the probability P,for each of the following events.Atleast one head in two tosses of a fair coin.
cbse
math
class11
ch16
probability
exemplar
q17-b
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
Determine the probability P,for each of the following events.An odd number appears in a single toss of a fair die.
cbse
math
class11
ch16
probability
exemplar
q17-a
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
A sample space consists of a elementary outcomes $e_1,e_2........e_9$ whose probabilities are $P(e_1)=P(e_2)=0.08,P(e_3)=P(e_4)=P(e_5)=.1,P(e_6)=P(e_7)=.2,P(e_8)=p(e_9)=0.07$.Suppose $A=\{e_1,e_5,e_8\},B=\{e_2,e_5,e_8,e_9\}$.Calculate $P(\bar{B})$ from P(B),also calculate $P(\bar{B})$ directly from the elementary outcomes of $\bar{B}$.
cbse
math
class11
ch16
probability
exemplar
q16-d
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
A sample space consists of a elementary outcomes $e_1,e_2........e_9$ whose probabilities are $P(e_1)=P(e_2)=0.08,P(e_3)=P(e_4)=P(e_5)=.1,P(e_6)=P(e_7)=.2,P(e_8)=p(e_9)=0.07$.Suppose $A=\{e_1,e_5,e_8\},B=\{e_2,e_5,e_8,e_9\}$.List the composition of the event $A\cup B$,and calculate $P(A \cup B)$ by adding the probabilities of the elementary outcomes.
cbse
math
class11
ch16
probability
exemplar
q16-c
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
A sample space consists of a elementary outcomes $e_1,e_2........e_9$ whose probabilities are $P(e_1)=P(e_2)=0.08,P(e_3)=P(e_4)=P(e_5)=.1,P(e_6)=P(e_7)=.2,P(e_8)=p(e_9)=0.07$.Suppose $A=\{e_1,e_5,e_8\},B=\{e_2,e_5,e_8,e_9\}$.Using the addition law of probability ,calculate $P(A \cup B)$ .
cbse
math
class11
ch16
probability
exemplar
q16-b
sec-c
difficult
asked
Jul 8, 2014
by
sreemathi.v
1
answer
A sample space consists of a elementary outcomes $e_1,e_2........e_9$ whose probabilities are $P(e_1)=P(e_2)=0.08,P(e_3)=P(e_4)=P(e_5)=.1,P(e_6)=P(e_7)=.2,P(e_8)=p(e_9)=0.07$.Suppose $A=\{e_1,e_5,e_8\},B=\{e_2,e_5,e_8,e_9\}$.Calculate P(A),P(B) and $P(A \cap B)$
cbse
math
class11
ch16
probability
exemplar
q16-a
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
A card is drawn from a deck of 52 cards.Find the probability of getting a king or a heart or a red card.
cbse
math
class11
ch16
probability
exemplar
q15
sec-c
difficult
asked
Jul 8, 2014
by
sreemathi.v
1
answer
If the letters of the word ASSASSINATION are arranged at random.Find the probability that no two A's are coming together
cbse
math
class11
ch16
probability
exemplar
q14-d
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
If the letters of the word ASSASSINATION are arranged at random.Find the probability that all A's are not coming together
cbse
math
class11
ch16
probability
exemplar
q14-c
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
If the letters of the word ASSASSINATION are arranged at random.Find the probability that two I's and two N's come together.
cbse
math
class11
ch16
probability
exemplar
q14-b
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
If the letters of the word ASSASSINATION are arranged at random.Find the probability that four S's come consecutively in the word.
cbse
math
class11
ch16
probability
exemplar
q14-a
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
A bag contains 8 red and 5 white balls.Three balls are drawn at random.Find the probability that one ball is red and two balls are white
cbse
math
class11
ch16
probability
exemplar
q13-c
sec-c
difficult
asked
Jul 8, 2014
by
sreemathi.v
1
answer
A bag contains 8 red and 5 white balls.Three balls are drawn at random.Find the probability that all the three balls are red
cbse
math
class11
ch16
probability
exemplar
q13-b
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
A bag contains 8 red and 5 white balls.Three balls are drawn at random.Find the probability that all the three balls are white
cbse
math
class11
ch16
probability
exemplar
q13-a
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
One urn contains two black balls (labelled $B_1,B_2$) and one white ball.A second urn contains one black ball and two white balls (labelled $W_1,W_2$).Suppose the following experiment is performed.One of the two urns is chosen at random.Next a ball is randomly chosen from the urn.Then a second ball is chosen at random from the same urn without replacing the first ball.What is the probability that two balls of opposite colour are chosen.
cbse
math
class11
ch16
probability
exemplar
q12-c
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
One urn contains two black balls (labelled $B_1,B_2$) and one white ball.A second urn contains one black ball and two white balls (labelled $W_1,W_2$).Suppose the following experiment is performed.One of the two urns is chosen at random.Next a ball is randomly chosen from the urn.Then a second ball is chosen at random from the same urn without replacing the first ball.What is the probability that two black balls are chosen?
cbse
math
class11
ch16
probability
exemplar
q12-b
sec-a
easy
asked
Jul 8, 2014
by
sreemathi.v
1
answer
One urn contains two black balls (labelled $B_1,B_2$) and one white ball.A second urn contains one black ball and two white balls (labelled $W_1,W_2$).Suppose the following experiment is performed.One of the two urns is chosen at random.Next a ball is randomly chosen from the urn.Then a second ball is chosen at random from the same urn without replacing the first ball.Write the sample space showing all possible outcomes.
cbse
math
class11
ch16
probability
exemplar
q12-a
sec-a
easy
asked
Jul 8, 2014
by
sreemathi.v
1
answer
The accompanying venn diagram shows three events A,B and C,and also the probabilities of the various intersections (for instance $P(A \cap B)=0.07$).Determine Probability of exactly one of the three occurs
cbse
math
class11
ch16
probability
exemplar
q11-f
sec-a
easy
asked
Jul 8, 2014
by
sreemathi.v
1
answer
The accompanying venn diagram shows three events A,B and C,and also the probabilities of the various intersections (for instance $P(A \cap B)=0.07$).Determine $P(B\cap C)$
cbse
math
class11
ch16
probability
exemplar
q11-e
sec-a
easy
asked
Jul 7, 2014
by
sreemathi.v
1
answer
The accompanying venn diagram shows three events A,B and C,and also the probabilities of the various intersections (for instance $P(A \cap B)=0.07$).Determine $P(A\cap \bar{B})$
cbse
math
class11
ch16
probability
exemplar
q11-d
sec-a
easy
asked
Jul 7, 2014
by
sreemathi.v
1
answer
The accompanying venn diagram shows three events A,B and C,and also the probabilities of the various intersections (for instance $P(A \cap B)=0.07$).Determine $P(A\cup B)$
cbse
math
class11
ch16
probability
exemplar
q11-c
sec-a
easy
asked
Jul 7, 2014
by
sreemathi.v
1
answer
The accompanying venn diagram shows three events A,B and C,and also the probabilities of the various intersections (for instance $P(A \cap B)=0.07$).Determine $P(B \cap \bar{C}$)
cbse
math
class11
ch16
probability
exemplar
q11-b
sec-a
easy
asked
Jul 7, 2014
by
sreemathi.v
1
answer
The accompanying venn diagram shows three events A,B and C,and also the probabilities of the various intersections (for instance $P(A \cap B)=0.07$).Determine P(A)
cbse
math
class11
ch16
probability
exemplar
q11-a
sec-a
easy
asked
Jul 7, 2014
by
sreemathi.v
1
answer
One of the four persons John,Rita,Aslam or Gurpreet will be promoted next month.Consequently the sample space consists of four elementary outcomes S={John promoted,Rita promoted,Aslam promted,Gurpreet promoted}.You are told that the chances of John's promotion is same as that of Gurpreet,Rita's chances of promotion are twice as likely as John's,Aslam's chances are four times that of John.If A ={John promoted or Gurpreer promoted} find P(A)
cbse
math
class11
ch16
probability
exemplar
q10-b
sec-c
medium
asked
Jul 7, 2014
by
sreemathi.v
1
answer
One of the four persons John,Rita,Aslam or Gurpreet will be promoted next month.Consequently the sample space consists of four elementary outcomes S={John promoted,Rita promoted,Aslam promted,Gurpreet promoted}.You are told that the chances of John's promotion is same as that of Gurpreet,Rita's chances of promotion are twice as likely as John's,Aslam's chances are four times that of John.Determine P(John promoted),P(Rita promoted),P(Aslam promoted),P(Gurpreet promoted)
cbse
math
class11
ch16
probability
exemplar
q10-a
sec-c
medium
asked
Jul 7, 2014
by
sreemathi.v
1
answer
Four candidates A,B,C,D have applied for the assignment to coach a school cricket team.If A is twice as likely to be selected as B,and B and C are given about the same chance of being selected,while C is twice as likely to be selected as D,what are the probabilities that A will not be selected?
cbse
math
class11
ch16
probability
exemplar
q9-b
sec-b
difficult
asked
Jul 7, 2014
by
sreemathi.v
1
answer
Four candidates A,B,C,D have applied for the assignment to coach a school cricket team.If A is twice as likely to be selected as B,and B and C are given about the same chance of being selected,while C is twice as likely to be selected as D,what are the probabilities that C will be selected?
cbse
math
class11
ch16
probability
exemplar
q9-a
sec-b
difficult
asked
Jul 7, 2014
by
sreemathi.v
1
answer
A team of medical students doing their internship have to assist during surgeries at a city hospital.The probabilities of surgeries rated as very complex,complex,routine,simple or very simple are respectively 0.15,0.20,0.31,0.26,0.08.Find the probabilities that a particular surgery will be rated routine or simple
cbse
math
class11
ch16
probability
exemplar
q8-d
sec-b
medium
asked
Jul 7, 2014
by
sreemathi.v
1
answer
A team of medical students doing their internship have to assist during surgeries at a city hospital.The probabilities of surgeries rated as very complex,complex,routine,simple or very simple are respectively 0.15,0.20,0.31,0.26,0.08.Find the probabilities that a particular surgery will be rated routine or complex
cbse
math
class11
ch16
probability
exemplar
q8-c
sec-b
medium
asked
Jul 7, 2014
by
sreemathi.v
1
answer
A team of medical students doing their internship have to assist during surgeries at a city hospital.The probabilities of surgeries rated as very complex,complex,routine,simple or very simple are respectively 0.15,0.20,0.31,0.26,0.08.Find the probabilities that a particular surgery will be rated neither very complex nor very simple
cbse
math
class11
ch16
probability
exemplar
q8-b
sec-b
medium
asked
Jul 7, 2014
by
sreemathi.v
1
answer
A team of medical students doing their internship have to assist during surgeries at a city hospital.The probabilities of surgeries rated as very complex,complex,routine,simple or very simple are respectively 0.15,0.20,0.31,0.26,0.08.Find the probabilities that a particular surgery will be rated complex or very complex
cbse
math
class11
ch16
probability
exemplar
q8-a
sec-b
medium
asked
Jul 7, 2014
by
sreemathi.v
1
answer
If A and B are mutually exclusive events,$P(A)=0.35$ and $P(B)=0.45$ find $P(A' \cap B')$
cbse
math
class11
ch16
probability
exemplar
q7-f
sec-a
easy
asked
Jul 7, 2014
by
sreemathi.v
1
answer
If A and B are mutually exclusive events,$P(A)=0.35$ and $P(B)=0.45$ find $P(A \cap B')$
cbse
math
class11
ch16
probability
exemplar
q7-e
sec-a
easy
asked
Jul 7, 2014
by
sreemathi.v
1
answer
If A and B are mutually exclusive events,$P(A)=0.35$ and $P(B)=0.45$ find $P(A \cap B)$
cbse
math
class11
ch16
probability
exemplar
q7-d
sec-a
easy
asked
Jul 7, 2014
by
sreemathi.v
1
answer
If A and B are mutually exclusive events,$P(A)=0.35$ and $P(B)=0.45$ find $P(A \cup B)$
cbse
math
class11
ch16
probability
exemplar
q7-c
sec-a
easy
asked
Jul 7, 2014
by
sreemathi.v
1
answer
If A and B are mutually exclusive events,$P(A)=0.35$ and $P(B)=0.45$ find P(B')
cbse
math
class11
ch16
probability
exemplar
q7-b
sec-a
easy
asked
Jul 7, 2014
by
sreemathi.v
1
answer
If A and B are mutually exclusive events,$P(A)=0.35$ and $P(B)=0.45$ find P(A')
cbse
math
class11
ch16
probability
exemplar
q7-a
sec-a
easy
asked
Jul 7, 2014
by
sreemathi.v
1
answer
In a large metropolitan area ,the probabilities are 0.87,0.36,0.30 that a family (randomly chosen for a sample survey) owns a colour television set,a black and white television set,or both kinds of sets.What is the probability that a family owns either anyone or both kinds of sets?
cbse
math
class11
ch16
probability
exemplar
q6
sec-b
difficult
asked
Jul 7, 2014
by
sreemathi.v
1
answer
A die is loaded in such a way that each odd number is twice as likely to occur as each even number.Find P(G),where G is the event that a number greater than 3 occurs on a single roll of the die.
cbse
math
class11
ch16
probability
exemplar
q5
sec-c
easy
asked
Jul 7, 2014
by
sreemathi.v
1
answer
An experiment consists of rolling a die until a 2 appears.How many elements of the sample space correspond to the event that the 2 appears not later than the $k^{th}$ roll of the die?[Hint (a) first (k-1) rolls have 5 outcomes each and $k^{th}$ rolls should result in 1 outcomes.(b) $1+5+5^2+.......5^{k-1}$]
cbse
math
class11
ch16
probability
exemplar
q4-ii
sec-b
medium
asked
Jul 7, 2014
by
sreemathi.v
1
answer
An experiment consists of rolling a die until a 2 appears.How many elements of the sample space correspond to the event that the 2 appears on the $k^{th}$ roll of the die?[Hint (a) first (k-1) rolls have 5 outcomes each and $k^{th}$ rolls should result in 1 outcomes.(b) $1+5+5^2+.......5^{k-1}$]
cbse
math
class11
ch16
probability
exemplar
q4-i
sec-b
medium
asked
Jul 7, 2014
by
sreemathi.v
1
answer
Suppose an integer from 1 through 1000 is chosen at random,find the probability that the integer is a multiple of 2 or a multiple of 9.
cbse
math
class11
ch16
probability
exemplar
q3
sec-b
medium
asked
Jul 7, 2014
by
sreemathi.v
1
answer
Six new employees,two of whom are married to each other,are to be assigned six desks that are lined up in a row.If the assignment of employees to desks is made randomly,what is the probability that the married couple will have non adjacent desks?
cbse
math
class11
ch16
probability
exemplar
q2
sec-c
difficult
asked
Jul 7, 2014
by
sreemathi.v
1
answer
If the letters of the word ALGORITHM are arranged at random in a row what is the probability the letters GOR must remain together as a unit ?
cbse
math
class11
ch16
probability
exemplar
q1
sec-b
easy
asked
Jul 7, 2014
by
sreemathi.v
1
answer
The number lock of a suitcase has four wheels,each labelled with 10 digits (ie) from 0 to 9.The lock opens with a sequence of four digits with no repeats.What is the probability of a person getting the right sequence to open the suitcase?
cbse
math
class11
ch16
probability
bookproblem
misc
q10
sec-b
medium
asked
Jul 7, 2014
by
sreemathi.v
1
answer
If four digit numbers greater than 5000 are randomly formed from the digits 0,1,3,5 and 7,what is the probability of forming number divisible by 5 when repetition of digits is not allowed.
cbse
math
class11
ch16
probability
bookproblem
misc
q9-ii
sec-c
difficult
asked
Jul 3, 2014
by
sreemathi.v
1
answer
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