A statistics instructor (with at least 20 years

Answered question

2022-04-14

  1. A statistics instructor (with at least 20 years of experience teaching the same course) has established that 10 percent of all students who take his course receive a failing grade. If 10 students have enrolled for his course next semester, Determine the expected number of students who will fail and the variance.

Answer & Explanation

user_27qwe

user_27qwe

Skilled2022-05-13Added 375 answers

Given:

n = 10,    p = 0.10,   x = 1

 

P(X1)=P(0)+P(1)=0.3487+0.3874=0.7361=0.736(rounded)

P(X=0)=10C0×0.10×0.910=0.3487

P(X=1)=10C1×0.11×0.99=0.3874

Do you have a similar question?

Recalculate according to your conditions!

New Questions in College

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?