If x is a binomial random variable, calculate , 2, and for each of the following

Question

If x is a binomial random variable, calculate , 2, and for each of the following values of n and p. Complete parts a through f.

A. n = 22 p =.4

=        (Round to the nearest tenth as needed.)

2=         (Round to the nearest hundredth as needed.)

=          (Round to the nearest thousandth as needed.)

B. n= 82, p = 0.2

=        (Round to the nearest tenth as needed.)

2=         (Round to the nearest hundredth as needed.)

=          (Round to the nearest thousandth as needed.)

C n= 101, p = 0.6

=        (Round to the nearest tenth as needed.)

2=         (Round to the nearest hundredth as needed.)

=          (Round to the nearest thousandth as needed.)

D. n= 166 p = 0.9

=        (Round to the nearest tenth as needed.)

2=         (Round to the nearest hundredth as needed.)

=          (Round to the nearest thousandth as needed.)

E. n = 60 p= .8

=        (Round to the nearest tenth as needed.)

2=         (Round to the nearest hundredth as needed.)

=          (Round to the nearest thousandth as needed.)

Explanation / Answer

A. n = 22 p =.4

=np=22*.4=8.8 (Round to the nearest tenth as needed.)

2=np(1-p)=22*.4*.6= 5.28 (Round to the nearest hundredth as needed.)

=square root of 2= 2.298 (Round to the nearest thousandth as needed.)

Similarly, other parts can be solved

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