Stats Review

Question 1

In a survey the town is divided into 8 regions and 10 randomly choosen. What is the sample type

Accepted Answer

systematic random

Question 2

Find the median: 14, 8, 7, 6, 5, 5, 11, 10, 8, 8, 6, 7

Accepted Answer

7.5

Question 3

Which of the following would show the heights of buildings arranged by intervals?

Accepted Answer

histogram

Question 4

Collecting organizing and intrepting data is called

Accepted Answer

statistics

Question 5

Why is the graph misleading?

Accepted Answer

the intervals on the y-axis are too big

Question 6

420 out of 577 teens do homework daily. Out of 980, how many do homework daily

Accepted Answer

713

Question 7

21 kids were asked how much tv they watch. Which display shows INDIVIDUAL student responses?

Accepted Answer

Dot Plot

Question 8

Which statment is untrue?

Accepted Answer

75% of movie goers to movie B are over 32

Question 9

a ________________ favors one part of the population

Accepted Answer

biased sample

Question 10

A method of collecting data is called __________________

Accepted Answer

survey

Question 11

A hotel wants to know how often his customers rent boats. Which method will give valid results?

Accepted Answer

Ask every 10th customer who checks in

Question 12

90% select roller coasters as their favorite ride. Out of 5,000 how many pick rollar coasters?

Accepted Answer

4,500

Question 13

Find the lower quartile: 14, 8, 7, 6, 5, 5, 11, 10, 8, 8, 6, 7

Accepted Answer

6

Question 14

Which of the following samples would be most representative of the entire student population?

Accepted Answer

surveying every 5th student to enter the building

Question 15

which is an appropriate display to show the price of gas over the last 3 weeks?

Accepted Answer

line graph

Question 16

Which measure of the center would convince people that the prices are low?

Accepted Answer

mode

Question 17

Find the upper quartile: 14, 8, 7, 6, 5, 5, 11, 10, 8, 8, 6, 7

Accepted Answer

9

Question 18

which measure of center whould you use to describe two data sets that are symmetric?

Accepted Answer

Mean

Question 19

A __________________ is the group being studied

Accepted Answer

Population

Questions 19