Question

1. A political scientist randomly selects 25 of the 100 senators currently serving in Congress, and then finds the lengths of the time that they have served. The average length of time found from the 25 senators is a _____.

a) statistic b) parameter c) population  d) There is no sample a) statistic

2.

In a Gallup poll of 1059 randomly selected adults, 39% answered: “yes" when asked, "Do you have a gun at home?" Identify the desired population.

a The 1059 selected adults b) the Gallup poll c) all adults

3.

Month of birth is what kind of variable?

a) quantitative b) categorical  

4.

Which of the following variables is quantitative?

a) the the opinion of students about cafeteria food

b) smoking status  

c) attendance in a face to face class on a given day

d) age

e) none

Answer 1

1. The average length of time found from the 25 senators is a statistic

2. The desired population is - all adults

3. Month of birth is a categorical variable.

4. The variable which is quantitative - age