Question

1. the probability of a basketball player hitting a foul shot is 1/3. how many shots would you expect her to make in 90 attempts.
a. 30
b. 60
c. 3
d. 45
my answer is b?


2. simplify 8P3.
a. 42
b. 336
c. 40,432
d. 56
my answer is d?


3. how many ways can 4 students be chosen from a class of 12 to represent their class at a banquet?
a. 495
b. 990
c. 5,940
d. 11,880
my answer is a?


4. you and 4 friends go to a concert. in how many ways can you sit in the assigned seats?
a. 20
b. 24
c. 48
d. 120
my answer is b?


5. you own 6 pairs of jeans and want to take 2 of them with you on vacation. in how many ways can you choose 2 pairs of jeans?
a. 10
b. 12
c. 15
d. 20
my answer is c?

Answer 1

on question 1 i meant to say
the probability of a basketball player hitting a foul shot is 1/3.

Answer 2

1) It is 1/3 of 90

2) 8! divided by 5!

3) is a combination
12! divide by (4!8!)

4) I agree with you

5) I agree with you.