Ch. 10 Study Guide

1.

1 point

What is 1/5 of 2/3

2/11

2/15

3/8

None of the above

2.

1 point

A baseball team is selecting their uniforms. They can choose from black or grey pants, T-Shirts or Mesh Jerseys, and a solid-colored hat or striped hat.

How many possible outcomes could their be. Use a tree diagram to help.

12

16

8

None of the above

3.

1 point

You win two different running races.

independent or not indpendent?

not independent

independent

4.

1 point

I have a penny, three quarters, and two dimes.

What is the probability I get a quarter when I draw a coin out of my piggy bank?

1/2

6

1/6

1/3

5.

1 point

The probability of making a 12-ft. putt in golf is 40%. How many times should you expect to make it if you putt 30 times?

17

one and four fifths

12

None of the above

6.

1 point

In how many ways can 9 football players be arranged for a photo?

Hint: Use the same expression as in number 8.

45

323

362,880

56,450

7.

1 point

In how many ways can the letters of the word John be arranged?

Hint: To find this answer you must multiply 1 x 2 x 3 x 4

*Do not use the RRV (lol)

None

three

21

24

8.

1 point

I toss a coin 800 times. The coin lands on tails 560 times. What is the experimental probability of getting heads?

300

7/10

3/10

None of the above

9.

1 point

I am a baseball pitcher. I throw the ball 65 times and 25 of them are strikes. Find the experimental probability that I wil throw a strike.

8/13

40/65

5/13

None of the above

10.

1 point

You roll a number cube twice.

independent or not independent?

not independent

independent

11.

1 point

A company sells baseball bats, gloves, cleats, and shirts. Before shipping 20,000 of each product, a sample of each is tested.

of 300 baseball bats, 30 are flawed. Predict how many of the 20,000 bats would be defective.

4,000

2,000

6,000

8,000

12.

1 point

Suppose you roll a number cube three times. What's the probability that you will roll a 3, then a 1, then an odd number?

1/6

5/6

1/432

1/72

13.

1 point

Today is Sunday. It is snowing today.

Decide whether or not these events are independent.

not independent

independent

14.

1 point

I have five pennies, four nickels, and two dimes in a piggy bank.

Whats the probability that I reach in and get a nickel or a dime?

1/3

6/11

4/9

8/121