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Recent questions tagged q5-i
ASK
The mean and standard deviation of 20 observations are found to be 10 and 2 respectively. On rechecking it was found that an observation 8 was incorrect. Calculate the correct mean and standard deviation If wrong item is omitted.
cbse
math
class11
ch15
statistics
misc
q5-i
sec-c
medium
asked
Jul 2, 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
cbse
math
class11
ch16
probability
bookproblem
exercise16-3
q5-i
sec-b
medium
asked
Jun 30, 2014
by
sreemathi.v
1
answer
Three coins are tossed,describe two events which are mutually exclusive
cbse
math
class11
ch16
probability
bookproblem
exercise16-2
q5-i
sec-b
medium
asked
Jun 27, 2014
by
sreemathi.v
1
answer
Find the middle term in the expansion of $(\large\frac{x}{a}-\frac{a}{x})^{10}$
cbse
math
class11
ch8
binomial-theorem
exemplar
q5-i
sec-c
difficult
asked
Jun 24, 2014
by
sreemathi.v
1
answer
Find the intersection of each pair of the following set :(i) X={1,3,5},Y={1,2,3}
cbse
math
class11
ch1
sets
bookproblem
exercise1-4
q5-i
sec-b
medium
asked
May 27, 2014
by
sreemathi.v
1
answer
Are the following pair of sets equal?Give reasons :$(i)\; A= \{2,3\},B=\{x : x\; is\; solution\; of \}x^2+5x+6=0$
cbse
math
class11
ch1
sets
bookproblem
exercise1-2
q5-i
sec-b
medium
asked
May 23, 2014
by
sreemathi.v
1
answer
List of all the elements of the following set : A={x : x is an odd natural number }
cbse
math
class11
ch1
sets
bookproblem
exercise1-1
q5-i
sec-a
easy
asked
May 23, 2014
by
sreemathi.v
1
answer
Evaluate $\large\frac{n!}{(n-r)!}$ when $n=6,r=2$
cbse
math
class11
bookproblem
ch7
permutations-and-combinations
exercise7-2
q5-i
sec-a
easy
asked
May 13, 2014
by
sreemathi.v
1
answer
Find the value :$\sin 75^{\large\circ}$
cbse
math
class11
ch3
trigonometric-functions
bookproblem
exercise3-3
q5-i
sec-a
easy
asked
Apr 17, 2014
by
sreemathi.v
1
answer
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