# Test8D - Test 8D AP Statistics Name: Directions: Work on...

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

Test 8D AP Statistics Name: Directions: Work on these sheets. Part 1: Multiple Choice. Circle the letter corresponding to the best answer. 1. A basketball player makes 70% of her free throws. She takes 7 free throws in a game. If the shots are independent of each other, the probability that she makes 5 out of the 7 shots is about (a) 0.635. (b) 0.318. (c) 0.015. (d) 0.329. (e) 0.245. 2. It has been estimated that as many as 70% of the fish caught in certain areas of the Great Lakes have liver cancer due to the pollutants present. A sample of 130 fish is caught and inspected for signs of liver cancer. The number of infected fish within two standard deviations of the mean is (a) (81, 101). (b) (86, 97). (c) (63, 119). (d) (36, 146). (e) (75, 107). 3. In a triangle test a tester is presented with three food samples, two of which are alike, and is asked to pick out the odd one by tasting. If a tester has no well-developed sense of taste and can pick the odd one only by chance, what is the probability that in five trials he will make four or more correct decisions? (a) 0.045 (b) 0.004 (c) 0.041 (d) 0.959 (e) 0.955 4. A set of 10 cards consists of 5 red cards and 5 black cards. The cards are shuffled thoroughly and you turn cards over, one at a time, beginning with the top card. Let X be the number of cards you turn over until you observe the first red card. The random variable X has which of the following

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.

## This note was uploaded on 11/03/2011 for the course STATS 101 taught by Professor Smith during the Spring '11 term at University of Colorado Denver.

### Page1 / 4

Test8D - Test 8D AP Statistics Name: Directions: Work on...

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

View Full Document
Ask a homework question - tutors are online