Measure the age (years), weight (pounds) height (ft), and breed of 500 cats. How many variables were measured?

a. 10

b. 200

c. 4

d. 503

Which of the following statements is not true? The media can influence a person's opinion by

a. using data taken over a short period of time

b. using graphs and changing the vertical scale

c. using data taken from a small sample size

d. altering the data to make a better point

An airline wants to determine customer satisfaction with security measures being taken on its flights. The airline chooses 7 of its flights leaving from a randomly chosen airport. This selection method is:

a. multi-stage random sampling

b. cluster random sampling

c. simple random sampling

d. neither cluster nor multi-stage random sampling

. When can't the value of a quantitative variable be expressed as a number?

a. only if the variable is discrete

b. only if the variable is continuous

c. always

d. never

. A survey of the driving habits for commuters asks the following questions: How many people travel to work of school each day in your primary vehicle?

What distance do you commute to work or school?

How many vehicles do you own?

What did you pay in repairs last year?

What is true about the variables measured?

a. some are quantitative and some are qualitative

b. some are discrete and some are continuous

c. all are continuous

d. all are qualitative