10.5-10.8 TQUI

Determine whether the survey sample is biased or unbiased.

What is your favorite sport? Sample is chosen from people attending a soccer game.

• Biased

• Unbiased

Determine whether the survey sample is biased or unbiased.

What is your favorite soft drink? Sample is chosen by picking names out of a telephone book.

• Biased

• Unbiased

Determine whether the survey sample is biased or unbiased.

Should more money be put into athletic programs or music programs at school? Sample is chosen from students in the band program.

• Biased

• Unbiased

Determine whether the survey sample is biased or unbiased.

What is your favorite vacation destination? Sample is chosen by asking every student in the class.

• Biased

• Unbiased

One hundred people in a music store were surveyed about what type of music they prefer. If 35% of them said they prefer rock music, how many people out of 1500 can be expected ot prefer rock music?

• 350

• 35

• 525

• 52.5

Erin has a bag of marbles with 3 blue, 1 yellow, 2 red and 4 green.

Is Erin more likely to choose a blue or green marble?

• Blue

• Green

• Yellow

• Red

Erin has a bag of marbles with 3 blue, 1 yellow, 2 red and 4 green.

What is the probability that Erin chooses a red or yellow marble?

• 4/10

• 1/10

• 2/10

• 3/10

Erin has a bag of marbles with 3 blue, 1 yellow, 2 red and 4 green.

What is the probability that Erin does NOT choose a green marble?

• 6/10

• 4/10

• 2/10

• 3/10

What is the theoretical probability that the spinner lands on blue?

• 4/5

• 1/5

• 2/5

• 3/5

If Chloe spins the spinner 12 times and it lands on a red 5 of the times. Is this theoretical or experimental?

• Theoretical

• Experimental