Please type the answer only no explanation is required

Question 9: Which one of the following is referred to as the population mean?

Group of answer choices

A.

D. n

C. p

B. s

Question 10

The main purpose of descriptive statistics is to:

Group of answer choices

Determine if the data adequately represents the population.

Make inferences about a population.

Summarize data in a useful and informative manner.

Gather or collect data.

Question 11

Which of the following is an example of a continuous variable?

Group of answer choices

Zip codes of shoppers

Rankings of baseball teams in a league

Number of students in a statistics class

Family income

Question 12

What level of measurement is the the number of traffic tickets reported in Delaware County in a given month?

Group of answer choices

Ordinal

Interval

Ratio

Nominal