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MrRissso [65]
3 years ago
14

A study states that 34% of people prefer their eggs crambled. you randomly select 7 people who had egs for breakfast. what is th

e standard deviation for this distributions
Mathematics
1 answer:
Darya [45]3 years ago
4 0

Answer:

Mean of the binomial distribution    μ = 2.38

Standard deviation of the binomial distribution   σ =   1.2533

Step-by-step explanation:

<u><em>Explanation</em></u>:-

Given Population proportion

                   p = 34 % = 0.34

                  q = 1- p

                     = 1 -0.34

                      = 0.66

                  q = 0.66

Mean of the binomial distribution  

              μ = n p = 2.38

Standard deviation of the binomial distribution

          σ = √n p q  =  1.2533

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3) 1

4) -2

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Step-by-step explanation:

According to the information given in the exercise, the value of "x" is:

x = -2

Then:

1) You must substitute  x = -2 into the expresion x-2:

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Now, you must evaluate:

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2) You have to substitute the given value of "x" into the second expression:

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4) By definition:

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Then, substituting   x = -2 into x^1 and evaluating, you get:

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5) Since:

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When you substitute the given value of "x" into the last expression and then  you evaluate, you get:

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3 years ago
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