Question

For a sample size of 115 and a population parameter of 0.1, what is the standard deviation of the normal curve that can be used to approximate the binomial probability histogram? Round your answer to three decimal places.

A. 0.035
B. 0.043
C. 0.054
D. 0.028

Answer 1

We have the value of population parameter p = 0.1
This means q = 0.9
Sample Size = n = 115

The formula for the standard deviation to be used is:


`s= \sqrt{ (pq)/(n) }`

Using the values, we get:


`s= \sqrt{ (0.1*0.9)/(115) } \\ \\ s=0.028`

So, option D gives the correct value of Standard Deviation of the normal curve