AP Statistics Optional Midterm Review

The average annual salary for 35 of a company's 1200 accountants is $68,000.

• parameter
• statistic

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

In a recent survey of 1503 adults in the United States, 53% said they use both a landline and a cell phone,

• parameter
• statistic

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

In  a recent year, the average math scores for all graduates on the ACT was 21.1.

• parameter
• statistic

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

Can pleasant aromas help a student learn better? Two researchers believed that the presence of a floral scent could improve a person's learning ability in certain situations. They had 22 people work through a pencil-and-paper maze 6 times. Three of the times they wore a floral-scented mask and three times they wore an unscented mask. The three trials for each mask followed one another. Testers measures the length of time it took subjects to complete each of the six trials. They reported that, on average, subjects wearing the floral-scented mask completed the maze more quickly that those wearing the unscented mask, although, the difference was not statistically significant. This study is:

• a convenience sample
• an oberservational study
• an experiment, but not double-blind
• a double-blind experiment

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.5

A television station is interested in predicting whether voters in its viewing area are in favor of federal funding for health care. It asks its viewers to phone in and indicate whether they support or are opposed to this. Of the 2241 viewers who phoned in, 1574 were opposed to federal funding for healthcare.
Referring to the information above, the viewers who phoned in are

• a voluntary response sample
• a convenience sample
• a census
• a population

Tags

CCSS.HSS.IC.B.3

Which measure of central tendency best represents this data?

• Mean

• Median

• Mode

• Range

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.2

What does the standard deviation tell us about the data set?

• How spread out the numbers are

• How much each number in the data set increases by

• How much each number in the data set decreases by

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.2

Which month is your birthday?

• Numerical

• Categorical

Tags

CCSS.1.MD.C.4

How many states have your visited?

• Categorical

• Numerical

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.1

What did you eat for supper last night?

• Numerical

• Categorical

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.1