{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

131A_1_prac_midterm

# 131A_1_prac_midterm - EE131A[Type text Practice Midterm...

This preview shows pages 1–2. Sign up to view the full content.

EE131A [Type text] Practice Midterm Problem 1. (total: 20pts) From a group of 5 women and 7 men, a committee is to be formed by picking 5 members randomly from this group of 12 individuals: (a) (5pts ) What is the probability that the committee has exactly 2 women and 3 men? (b) (10pts ) Two men, Mr. Jones and Mr. Chen, are sworn enemies. What is the probability that the committee has two women and 3 men, but not both Mr Jones and Mr. Chen? (c) (5pts) Given that the randomly picked committee has 2 women and 3 men, what is the conditional probability that the committee does not have both Mr Jones and Mr. Chen? Problem 2 (total: 25 pts) A bin contains three different types of disposable flashlisghts. The probability that a type 1 flashlisght will give over 100 hours of use is 0.7; the corresponding probabilities for type 2 and and 3 flashlisghts being 0.4 and 0.3, respectively. Suppose that 20% of the flashlights in the bin are type 1, 30% are type 2, and 50% are type 3.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 2

131A_1_prac_midterm - EE131A[Type text Practice Midterm...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online