1. Match the most correct statement with it's corresponding term.

The particular group of interest in a study.

The information collected for a study.

Collecting data from every member of the population.

A.The particular group of interest in a study.

B.The information collected for a study.

C.Collecting data from every member of the population.

D.The numerical description of a particular population characteristic.

E.A subset of a population.

F.

The numerical description of a characteristic of a sample.

A.Population

B.Data

C.Census

D.Parameter

E.Sample

F.Sample Statistic

2.. Match the the statement to the most appropriate term.

Mean

-

A.Mean

B.Median

C.Mode

D.Outlier

E.Range

F.Standard Deviation

G.

Inner Quartile Range

A.A data value that is considered extreme relative to the rest of the data.

B.The value of the difference between the extremes of the data set.

C.The values that describes the middle 50% of the data.

D.Measure of how much we might expect the data set to differ from the mean.

E.The sum of all datapoints divided by the number of data points.

F.The middle data point when ordered.

G.The value in the data set that occurs most often.

3..Find the range of the following data set.

29,31,23,25,31,37,30,30,34,30

4.. In a few sentences, explain the meaning of "Random Sample" and why is it important when collecting data.

5..The following table represents the frequency distribution of items bought at a clothing store.Determine the relative frequency of the tshirts.

ItemsNumber sold

T-shirts 80

Jeans 86

Sweaters. 82

Jackets. 60

6.. Calculate the mean of the following data set to two decimal places.

32,25,28,32,20,39,32,25,32

7.. Match the statement with the best possible term.

• A soda bottling company needs to test the quality of the bottles they produce.Amanager needs the results quickly, and has several bottles within reach to test.
• Gathering data from every member of a particular group orinterest.
• An investigator wants to know what types of vehicles accessed the highways in his city during the past week. He has access to traffic camera footage of each highway entrance ramp for that time period.There are no clear differences in the type of traffic seen at different times of day or at different locations.

A soda bottling company will test a random sample of 100 bottles on the production line to assure the product meets quality standards.The company selects the first bottle from every 1000 bottles produced.

A.Census

B.Convenience Sample

C.Random Sampling

D.Systematic Sampling

8.. Match the correct symbol to the correct term.

• Population Mean
• Sample Mean
• Population Standard Deviation
• Sample Standard Deviation

9.. A soda manufacturer employees a quality controls expert. They are tasked with ensuring the quality of the soda is within reasonable industry standards.The soda cans are packed 15 to a case,100 cases can fit on a pallet, and 1000 pallets can fit in the warehouse. The expert can survey the soda in several different ways.

Match the appropriate sampling method with each scenario.

• A computer program selects a 15,000 soda cans at random for the expert to test.
• The expertgoes to the warehouse and selects the closest 10palletsto test to get 15,000 soda samples.
• The expert goes to the warehouse andselects one case from each of the 1000 pallets for a total of15,000 soda samples.
• Theexpertgoesto the warehouse and randomly selects 10 pallets for a total of 15,000 soda samples.
• The expert goes to the the warehouse and selects every 100th pallet to test for a total of 15,00 soda samples.

A.Convenience

B.Stratified

C.Random

D.Cluster

E.Systematic

10.. The following table represents a grouped frequency distribution of the number of hours spent on the phone per week for the surveyed students.What percentage of students used their phonemore than 9 hours per week?

Hours Number of Students

0.0 - 2.9. 1

3.0 - 5.9 7

6.0 - 8.9 19

9.0 - 11.9 16

12.0 + 7

11.. In a few sentences, define and describe the purpose of a frequency table.