Unit 10 Probability

Is this an independent event?

Teri picks a card from the deck, does not replace it, then chooses a second card.

• Yes

• No

Lucy has the spinner pictured and spins it twice in a row. What is the probability that she lands on blue first and then on yellow or green?

• 1 / 16
• 1 ⁄ 6
• 1 ⁄ 8
• 3 ⁄ 4

Geraldo has a deck of cards and a bag of marbles with 4 red, 6 blue, 3 green, and 2 yellow marbles. What is the probability that he draws a 7 out of the deck of cards and then pulls a blue marble out of the bag?

• 3 ⁄ 15
• 2 ⁄ 65
• 7 ⁄ 52
• 14 ⁄ 260

A classroom has 28 students. 11 of these students are boys. If a student is randomly chosen, what's the probability that the student will be a girl? Round

• about 57%
• about 61%
• about 39%
• about 40%

What is the probability of flipping a coin and getting tails three times in a row?

• 1/2
• 1/4
• 1/8
• 1/12

A number cube is rolled 48 times. According to theoretical probability, how many times should the number 4 appear? 

• 5
• 6
• 7
• 8

In a cup are the numbers 1 - 20. Find the theoretical probability of 
picking an even number. 

• 10/20
• 1/2
• 1/20
• 20/20

How many total outfit options are represented?

• 12
• 22
• 3

Which of the following situations is represented by this tree diagram?

• 3 shirt options, 6 pants options, and 12 shoe options
• 3 shirt options, 2 pants options, and 2 shoe options
• 2 shirt options, 3 pants options, and 1 shoe option

Which shows the sample space for flipping two coins?

• H, T
• HH, HT, TH, TT
• HH, TT
• Dime, Nickel