Probability mid chapter quiz

Omar ordered his sister a birthday card from a company that randomly selects a card from their inventory. The company has 21 total cards in inventory. 14 of those cards are birthday cards.

What is P(not a birthday card})?
If necessary, round your answer to 2 decimal places.

(a)  

Tags

CCSS.7.SP.C.7B

You flip a fair coin.

What is P(tails}?
If necessary, round your answer to 2 decimal places.

(a)  

Tags

CCSS.7.SP.C.7A

A spinner has six equal-sized sections numbered 1, 1, 2, 2, 3, and 4. What is the sample space for the spinner, and what is the probability of spinning a 1?

•    {1,2,3,4} P(1)=0.25

• {1,1,2,2,3} P(1)=0.33

• {1,2,2,3,4} P(1)=0.20

• {1,1,2,2,3,4} P(1)=0.33

Stacy uses a spinner with six equal sections numbered 2, 2, 3, 4, 5, and 6 to play a game.2. Select all the true statements about this game.

• The probability of the pointer landing on an even-numbered section is 66.67%.

• It is less likely that the pointer will land on an odd-numbered section.

• It is certain that the pointer will land on a number less than 6.

• The spinner is fair.

Tags

CCSS.7.SP.C.7B

Match the following

• a repeatable procedure

• Event

• one or more outcomes of an experiment

• Experiment

• The chance of an event happening

• Probability

• A possible result

• Sample Space

• A list of all possible outcomes

• Outcome:

  
  

Tags

CCSS.7.SP.C.5

The results of a survey asking 500 people about their favorite ice cream flavor are shown in the table. Assuming that there is no real preference between these 5 flavors, for which of these flavors does the experimental probability differ the most from the theoretical probability?

• Chocolate

• Vanilla

• Mint Chip

• Banana

Jasmin has a bag containing 165 colored beads. Her classmates take turns selecting one bead from the bag without looking, recording the color in the table, and replacing the bead. If the bag contained an equal number of each color of bead, for which color is the experimental probability closest to the theoretical probability?

(a)  

You roll a standard number cube once. What is the probability of not rolling a 6?

Answer explanation

The probability of not rolling a 6 is 5/6, which is the correct choice.

Which shows the sample space for flipping two coins? 
H = heads, T = tails

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

Tags

CCSS.7.SP.C.8B

Joel has an MP3 player called the Jumble. The Jumble randomly selects a song for the user to listen to. Joel's Jumble has 2 classical songs, 13 rock songs, and 5 rap songs on it.

What is P(rock song or rap song)?
If necessary, round your answer to 2 decimal places.

(a)  

Tags

CCSS.HSS.CP.B.7