[Answered] The expected value, E(X), of a binomial probability distribution with n trials and probability p of ...

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ap345

Hero Member
Posts: 537

on: Jun 24, 2018

The expected value, E(X), of a binomial probability distribution with n trials and probability p of success is:
a. n + p
b. np(1 - p)
c. np
d. n + p - 1

Question 2

If n = 20 and p = 0.70, then the standard deviation of the binomial distribution is
a. 0.14
b. 2.05
c. 14.0
d. 14.7

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Marked as best answer by a Subject Expert

dmurph1496

Sr. Member
Posts: 343

Reply #1 on: Jun 24, 2018

Answer to Question 1

C

Answer to Question 2

B

ap345

Member
Posts: 537

Reply 2 on: Jun 24, 2018

Gracias!

mammy1697

Member
Posts: 341

Reply 3 on: Yesterday

Thanks for the timely response, appreciate it

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