(b) Compute the mean and standard deviation of the random variable using Hx = E[x•P(x)] and ox =Hx =(Round to two decimal places as needed.) Use n= 6 and p = 0.7 to complete parts (a) through (d) below.

here n= 6 p =0.7 q=1-p = 0\.3 here for binomial distribution p(x=r)=nr(p)r(q)n-r so now…

Answered: (b) Compute the mean and standard…

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(b) Compute the mean and standard deviation of the random variable using Hx = E(x•P(x)] and oy =

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 9PPS

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Question

(b) Compute the mean and standard deviation of the random variable using Hx = E[x•P(x)] and ox =
Hx =
(Round to two decimal places as needed.)

Use n= 6 and p = 0.7 to complete parts (a) through (d) below.

Expert Solution

Step 1

here n= 6

p =0.7

q=1-p = 0\.3

here for binomial distribution

$p (x = r) = (\binom{n}{r}) (p)^{r} (q)^{n - r}$

so now $p (x) = (\binom{6}{x}) (0.7)^{x} (0.3)^{6 - x} w h e r e x = 0, 1, . . . . 6$

by putting value of x prepare table a shown in step 2

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