Home
Class 12
MATHS
If overline (x(1)) " and " overline (x(2...

If `overline (x_(1)) " and " overline (x_(2))` are the means of two distributions such that `overline (x_(1)) lt overline (x_(2)) " and " overline (x)` is the mean of the combined distriubtion, then

A

`bar(x) lt bar(x_(1))`

B

`bar(x) gt bar(x_(2))`

C

`bar(x) = (bar(x)_(1) + bar(x)_(2))/(2)`

D

`bar(x)_(1) lt bar(x) lt bar(x)_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

If bar X_1 and bar X_2 are the means of two series such that bar X_1 lt bar X_2 and bar X is the mean of the combined series, then

If ( x )_1a n d( x )_2 are the means of two distributions such that ( x )_1 ( x )_2 (c) x =(( x )_1+( x )_2)/2 (d) ( x )_1<( x )_<( x )_2

If the mean of the following distribution is 6, find the value of x 2 4 6 10 x 3 2 3 1 2

If A and B are two independent events such that P(overline(A) cap B)=2//15 " and " P(A cap overline(B))=1//6 , then P(B), is

If A and B are two independent events such that P(overline(A))=(7)/(10), P(overline(B))=alpha " and" P(A cup B)=(8)/(10) , then alpha , is

Find the mean (overline(x)) of first 5 even natural numbers.

If A and B are two events such that P(A)gt0 and P(B)!=1, then P((overline(A))/(B)) is equal to

A and B are two independent events such that P(A)=(1)/(5), P(A cup B)=(7)/(10). " Then ", P(overline(B)) =

If the median of the scores 1,2,x,4,5("where " 1 lt 2 lt x lt 4 lt 5) is 3, then the mean of the scores is

If a random variable X has a Poisson distribution such that P(X=1)=P(X=2) then I: its mean is 2 II: its variance is 1