Probability Review

Calculate ₂₀p₂

• 380

• 190

• 40

Calculate ₁₀₀C₁₀₀

• 100

• 200

• 1

If Josie orders pizza from the pizza hut she gets a choice between 3 different meats, 5 different veggies and 3 different types of crust. How many pizza choices does she have if she picks one meat, one veggie, and one type of crust?

• 11

• 45

• 4320

• 3

How many different four-letter radio station “names” are possible if the first letter has to be a K or W?

• 456,976

• 24,288

• 358,800

• 35,152

If 18 people are signed up for the 100 meter dash how many ways can the participants come in 1^st, 2^nd, and 3^rd place.

• 4896

• 816

• 54

• 18

If 18 people are signed up for the 100 meter dash and the top three get to advance to the next meet. How many different ways can three people advance to the next meet?

• 816

• 54

• 4896

• 3

A lottery game is set up so that each player chooses four different numbers from 1 to 20. If the four numbers match the four numbers drawn in the lottery, the player wins (or shares) the top cash prize. What is the probability of winning the prize

• $\frac{1}{116280}$

• $\frac{1}{20}$

• $\frac{1}{4845}$

• $\frac{4}{20}$

Suppose that a survey of 350 college students is taken. The table to the right summarizes their answers to questions about the type of college they are attending, and their family’s income level. Find the probability that a randomly selected student is from a private college or is from a high-income family.

• $\frac{148}{350}$

• $\frac{120}{350}$

• $\frac{28}{350}$

• $\frac{98}{350}$

Suppose that a survey of 350 college students is taken. The table to the right summarizes their answers to questions about the type of college they are attending, and their family’s income level. Among people who attends a public college, find the probability that a randomly selected student is from a low-income family.    

•  $\frac{120}{252}$ 

•  $\frac{140}{252}$ 

•  $\frac{120}{350}$ 

•  $\frac{252}{350}$ 

If you roll a single six-sided die two times,find the probability of getting a 5 the first time and an odd number the second time.

•  $\frac{2}{3}$  

•  $\frac{1}{12}$  

•  $\frac{1}{2}$  

•  $\frac{1}{4}$