Four bad eggs are mixed with 10 good ones . three eggs are drawn one by one without replacement. Let X be the no of bad eggs drawn . Find the mean and variance of X.

CBSE Class 12-science Answered

Four bad eggs are mixed with 10 good ones . three eggs are drawn one by one without replacement. Let X be the no of bad eggs drawn . Find the mean and variance of X.

Asked by haroonrashidgkp | 07 Nov, 2018, 21:14: PM

Expert Answer

According to the question,

total number of eggs = 10 + 4 = 14

Bad eggs = 4

Let X be the number of bad eggs.

Hence, X can take value 0, 1, 2, 3, 4.

Now find mean and varaiance.

Answered by Sneha shidid | 12 Nov, 2018, 09:14: AM

Answered Unanswered My Questions My Answers

CBSE 12-science - Maths

there are 4 cards numbered 1 to 4 one number on one card . 2 cards are drawn at random without replacement . let x denote the sum of numbers on the 2 drawn cards . find the mean and varience of x

Asked by alanpeter9611 | 12 Feb, 2019, 17:18: PM

ANSWERED BY EXPERT

CBSE 12-science - Maths

Four bad eggs are mixed with 10 good ones . three eggs are drawn one by one without replacement. Let X be the no of bad eggs drawn . Find the mean and variance of X.

Asked by haroonrashidgkp | 07 Nov, 2018, 21:14: PM

ANSWERED BY EXPERT

CBSE 12-science - Maths

A box contains 16 bulbs , out of which 4 bulbs are defective. Three bulbs are drawn at random from the box. Let X be the no of defective bulbs drawn . find the mean and variance of X

Asked by haroonrashidgkp | 05 Nov, 2018, 21:42: PM

ANSWERED BY EXPERT

CBSE 12-science - Maths

What is the mean of a random variable