Probability and Making Predictions

7. Silvio created a table of the possible outcomes of spinning a spinner divided into 4 equal sections labeled A, B, C, and D and rolling a fair six-sided number cube, numbered 1 through 6. A sample space of the outcomes is shown below. Using the sample space, what is the probability of spinning the letter A and rolling a number less than 4? 7.6I

• 5/8

• 3/8

• 1/8

• 1/24

8 Mike has a stack of 10 cards numbered from 1 to 10. He randomly chooses a card and withoutreplacing the first card drawn, randomly chooses a second card. What is the probability that Mikewould pick two cards that are prime numbers? 7.6I

• 2/15
• 4/25
• 2/5
• 7/10

9 Tamara draws a tile from a bag and records the results. The bag contains tiles labeled, W, A, T, E, R,M, E, L, O, and N. Based on this information, which statement is true? 7.6H

• She is 1.5 times less likely to draw a vowel than a consonant.
• She is 1.5 times more likely to draw a vowel than a consonant.
• She is twice as likely to draw a consonant as a vowel.
• Drawing a vowel and a consonant are equal likely.

In a drawer, there are 6 white socks, 4 black socks, and 2 brown socks. You pick out a sock, replace it, then pick out a 2nd sock. What is the probability that you will pick a brown, then black sock?

• 1/11

• 1/18

• 1/36

• 2/33

The experimental probability that Lily will win a game is 4/9. if she plays the game 90 times, how many times can she expect to win? (HINT Set up a proportion: Part/Whole = Part/Whole)

• 45

• 40

• 36

• 20

Christopher flipped a coin fifteen times. She flipped heads 8 times and tails 7 times. What is the experimental probability that Christopher will flip tails on his next flip?

• 8/15 or about 53%

• 7/15 or about 47%

• 1/2 or 50%

• 1/4 or 25%

A jar contains 2 green marbles, 4 blue marbles, 3 yellow marbles, and 2 black marbles. A marble is chosen at random from the jar and replaced. Then a second marble is chosen at random. Find the probability of the first marble being green and the second marble being yellow. 

• 4/121
• 8/121
• 3/121
• 6/121

The bar graph shows the results of spinning the spinner 200 times. What is the experimental probability of landing on a 3?

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The arrow is spun 15 times and landed 4 times on the section labeled Q. Which statement is true?

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There are 200 vegetable plants in a garden. How many of the vegetable plants are green beans?

• 16

• 24

• 28

• 32