Making Predictions based on Samples

• 15760
• 17560
• 16760
• 16660

Tags

CCSS.6.RP.A.3C

Drake made 14 out of 20 free throw shots.  About how many out of the next 30 free throw shots would you expect him to make?

• 20
• 21
• 22
• 25

Tags

CCSS.7.RP.A.3

Below shows the number of votes for different sports:

• Football 12
• Basketball 15
• Volleyball 18
• Tennis 5

Based on the information what is the most reasonable prediction for the number of Tennis votes out of the next 50 votes?

• 7

• 15

• 10

• 20

Tags

CCSS.7.RP.A.2C

The randomly selected smaller group being surveyed is called ...

• sample

• population

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

The whole group being studied is the...

• sample

• population

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

In a random survey of 200 students, 25% reported attending the dance. If there are 700 students at the school, how many will be attending the dance?

• 175

• 150

• 205

• 235

Tags

CCSS.6.RP.A.3C

To evaluate the defect rate of its memory chips, an integrated circuit manufacturer tests every 100th chip off the production line.

• Biased Sample

• Unbiased Sample

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A public library asked every 10th person who entered to name the type of book they were getting.

• Biased

• Unbiased

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

3.  A hospital wants to open a gym. They ask the night-shift ER staff when they would use the gym.

• Biased
• Unbiased

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?

• thirty students who are often tardy
• thirty students who are rarely tardy
• thirty of her friends
• thirty randomly selected students from her school

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1