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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
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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

User Lukewm
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1 Answer

4 votes
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
User Mardoxx
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