Fill the binomial mean and spread

Exercise and reference answers

Missing parts

1. Answer

   np

   Choices

   1. np
   2. npq
   3. pq

2. Answer

   npq

   Choices

   1. np
   2. npq
   3. p over q

3. Answer

   the root of npq

   Choices

   1. np
   2. npq
   3. the root of npq

Complete the statement

For X following B(n, p), the mean is {0}, the variance is {1}, and the standard deviation is {2}.

Instructions

Tap the right expression for each blank to finish the sentence about a binomial variable.

Explanation