Course 2 Chapter 9

Question 1

Jim rolls a die 100 times & rolls thirty 4s. What is the theoretical probability to roll 4?

Accepted Answer

1/6

Question 2

How many ways are there to order 10 seventh graders?

Accepted Answer

10!

Question 3

What is the probability of randomly selecting 2 yellow fruits?

Accepted Answer

12/132 (or 1 in 11)

Question 4

Calculate P(11,3)

Accepted Answer

990

Question 5

What is the probability of spinning a 5 or 7 on this spinner?

Accepted Answer

1/5

Question 6

Choose the complementary events

Accepted Answer

Flipping heads / Flipping tails, Picking a blue marble / Not picking a blue marble

Question 7

In 20 trials, Derek rolled 7 eight times. What is the experimental probability of rolling 7?

Accepted Answer

2/5

Question 8

How many different outcomes are there for this die and spinner?

Accepted Answer

18

Question 9

Choose the complimentary event.

Accepted Answer

Someone saying your hair looks nice

Question 10

RNG is used to generate random numbers between 1 and 9, inclusive. Which could this simulate?

Accepted Answer

Picking marbles out of a bag with 9 marbles

Questions 10