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Recent questions tagged exercise16-3

In a class of 60 students,30 opted for NCC,32 opted for NSS and 24 opted for both NCC and NSS.If one of these student students is selected at random,find the probability that the student has opted NSS but not NCC

asked Jul 2, 2014 by sreemathi.v

1 answer

In a class of 60 students,30 opted for NCC,32 opted for NSS and 24 opted for both NCC and NSS.If one of these student students is selected at random,find the probability that the student has opted for neither NCC or NSS

asked Jul 2, 2014 by sreemathi.v

1 answer

In a class of 60 students,30 opted for NCC,32 opted for NSS and 24 opted for both NCC and NSS.If one of these student students is selected at random,find the probability that the student opted for NCC or NSS

asked Jul 2, 2014 by sreemathi.v

1 answer

The probability that a student will pass the final examination in both English and Hindi 0.5 and the probability of passing neither is 0.1.If the probability of passing the english examination is 0.75.What is the probability of passing the hindi examination?

asked Jul 2, 2014 by sreemathi.v

1 answer

In an entrance test that is graded on the basis of two examinations,the probability of a randomly chosen student passing the first examination is 0.8 and the probability of passing the second examination is 0.7.The probability of passing atleast one of them is 0.95.What is the probability of passing both?

asked Jul 2, 2014 by sreemathi.v

1 answer

In class XI of a school,40% of the students study mathematics and 30% study biology.10% of the class study both mathematics and biology.If a student is selected at random from the class.Find the probabilities that he will be studying mathematics or biology.

asked Jul 2, 2014 by sreemathi.v

1 answer

A and B are events such that $P(A)=0.42,P(B)=0.48,$P(A and B)=0.16.Determine P(A or B)

asked Jul 1, 2014 by sreemathi.v

1 answer

A and B are events such that $P(A)=0.42,P(B)=0.48,$P(A and B)=0.16.Determine P(not B)

asked Jul 1, 2014 by sreemathi.v

1 answer

A and B are events such that $P(A)=0.42,P(B)=0.48,$P(A and B)=0.16.Determine P(not A)

asked Jul 1, 2014 by sreemathi.v

1 answer

Events E and F are such that P(not E or not F)=0.25.state whether E and F are mutually exclusive.

asked Jul 1, 2014 by sreemathi.v

1 answer

If E and F are events .Such that $P(E)=\large\frac{1}{4}$$,P(F)=\large\frac{1}{2}$ and P(E and F)=$\large\frac{1}{8}$.Find P(not E and not F)

asked Jul 1, 2014 by sreemathi.v

1 answer

The sum and sum of squares corresponding to length x (in cm) and weight (y) in gm of 50 plant products are given below: $ \sum \limits _{i=1} ^{50} x_i=212, \qquad\sum \limits_{i=1}^{50}x_i^2 =902.8;\qquad \sum \limits _{i=1} ^{50} y_i=261, \qquad\sum \limits_{i=1}^{50}y_i^2 =1457.6$ Which is more varying , the length or weight?

asked Jul 1, 2014 by meena.p

1 answer

If E and F are events .Such that $P(E)=\large\frac{1}{4}$$,P(F)=\large\frac{1}{2}$ and P(E and F)=$\large\frac{1}{8}$.Find P( E or F)

asked Jul 1, 2014 by sreemathi.v

1 answer

Given $P(A)=\large\frac{3}{5}$ and $P(B)=\large\frac{1}{5}$.Find P(A or B),if $A$ and $B$ are mutually exclusive events .

asked Jul 1, 2014 by sreemathi.v

1 answer

Fill in the blanks : $P(A)=0.5,P(B)=0.35,P(A\cup B)=0.7,P(A\cap B)=$_________

asked Jul 1, 2014 by sreemathi.v

1 answer

Fill in the blanks : $P(A)=0.35,P(A\cap B)=0.25,P(A\cup B)=0.6,P(B)$=__________

asked Jul 1, 2014 by sreemathi.v

1 answer

Fill in the blanks :$P(A)=\large\frac{1}{3}$$,P(B)=\large\frac{1}{5}$$,P(A\cap B)=\large\frac{1}{15}$$,P(A\cup B)$=____________

asked Jul 1, 2014 by sreemathi.v

1 answer

Check whether the following probabilities P(A) and P(B) are consistently defined .$P(A)=0.5,P(B)=0.4,P(A \cup B)=0.8$

asked Jul 1, 2014 by sreemathi.v

1 answer

Check whether the following probabilities P(A) and P(B) are consistently defined .$P(A)=0.5,P(B)=0.7,P(A \cap B)=0.6$

asked Jul 1, 2014 by sreemathi.v

1 answer

In a lottery ,a person choose six,different natural numbers at random from 1 to 20 and if these six numbers match with the six numbers already fixed by lottery committee,he wins the prize.What is the probability of winning the prize in the game ?[Hint : Order of the numbers is not important]

asked Jul 1, 2014 by sreemathi.v

1 answer

The following is the record of goals scored by team A in a football session. For Team B , mean number of goals scored per match was 2 with a standard deviation 1.25 goals. Find which team may be considered more consistent ?

asked Jul 1, 2014 by meena.p

1 answer

A letter is selected at random from the word "ASSASSINATION".Find the probability that letter is a consonant

asked Jul 1, 2014 by sreemathi.v

1 answer

A letter is selected at random from the word "ASSASSINATION".Find the probability that letter is a vowel

asked Jul 1, 2014 by sreemathi.v

1 answer

If $\large\frac{2}{11}$ is the probability of an event,what is the probability of the event 'not A'

asked Jul 1, 2014 by sreemathi.v

1 answer

An analysis of monthly wages paid to workers in two firms A and B , belonging to the same industry, gives the following results. (i) Which firm A and B pays larger amount as monthly wages. (ii) which firm A or B shows greater variability in individual wages?

asked Jul 1, 2014 by meena.p

1 answer

Three coins are tossed once.Find the probability of getting atmost 2 tails

asked Jul 1, 2014 by sreemathi.v

1 answer

Three coins are tossed once.Find the probability of getting no tail

asked Jul 1, 2014 by sreemathi.v

1 answer

Three coins are tossed once.Find the probability of getting exactly two tails

asked Jul 1, 2014 by sreemathi.v

1 answer

Three coins are tossed once.Find the probability of getting 3 tails

asked Jul 1, 2014 by sreemathi.v

1 answer

Three coins are tossed once.Find the probability of getting no head

asked Jul 1, 2014 by sreemathi.v

1 answer

Three coins are tossed once.Find the probability of getting atmost 2 heads

asked Jul 1, 2014 by sreemathi.v

1 answer

Three coins are tossed once.Find the probability of getting atleast 2 heads

asked Jul 1, 2014 by sreemathi.v

1 answer

Three coins are tossed once.Find the probability of getting 2 heads

asked Jul 1, 2014 by sreemathi.v

1 answer

Three coins are tossed once.Find the probability of getting 3 heads

asked Jul 1, 2014 by sreemathi.v

1 answer

A fair coin is tossed four times and a person win Rs.1 for each head and lose Rs.1.50 for each tail that turns up.From the sample space,calculate how many different amounts of money you can have after four tosses and the probability of having each of these amounts.

asked Jul 1, 2014 by sreemathi.v

1 answer

From the prices of shares A and Y below. Find out which is more stable in value.

asked Jun 30, 2014 by meena.p

1 answer

There are four men and six women on the city council.If one council member is selected for a committee at random,how likely is it that it is a woman ?

asked Jun 30, 2014 by sreemathi.v

1 answer

A fair coin with 1 marked on one face and 6 on the other and a fair dice are both tossed.Find the probability that the sum of the numbers that turn up is 12

asked Jun 30, 2014 by sreemathi.v

1 answer

From the data given below state which group is more variable A or B?

asked Jun 30, 2014 by meena.p

1 answer

A fair coin with 1 marked on one face and 6 on the other and a fair dice are both tossed.Find the probability that the sum of the numbers that turn up is 3

asked Jun 30, 2014 by sreemathi.v

1 answer

A card is selected from a pack of 52 cards.Calculate the probability the card is black card

asked Jun 30, 2014 by sreemathi.v

1 answer

A card is selected from a pack of 52 cards.Calculate the probability the card is an ace

asked Jun 30, 2014 by sreemathi.v

1 answer

A card is selected from a pack of 52 cards.Calculate the probability the card is an ace of spades.

asked Jun 30, 2014 by sreemathi.v

1 answer

A card is selected from a pack of 52 cards.How many points are there in the sample space ?

asked Jun 30, 2014 by sreemathi.v

1 answer

A die is thrown,find the probability of following event : A number less than 6 will appear

asked Jun 30, 2014 by sreemathi.v

1 answer

A die is thrown,find the probability of following event : A number more than 6 will appear

asked Jun 30, 2014 by sreemathi.v

1 answer

A die is thrown,find the probability of following event : A number less than or equal to 1 will appear

asked Jun 30, 2014 by sreemathi.v

1 answer

A die is thrown,find the probability of following event : A number greater than or equal to 3 will appear

asked Jun 30, 2014 by sreemathi.v

1 answer

A die is thrown,find the probability of following event : A prime number will appear.

asked Jun 30, 2014 by sreemathi.v

1 answer

A coin is tossed twice,what is the probability that atleast one tail occurs

asked Jun 30, 2014 by sreemathi.v

1 answer

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