Stats

Quiz 1

1. Find the average unemployment number with the data below:

sept 12'  -- 12,188,000

aug 12'  -- 12,444,000

jul 12'  -- 12,694,000

jun 12'  -- 12,649,000

may 12'  -- 12,620,000

apr 12'  -- 12,400,000

mar 12'  -- 12,573,000

feb 12'  -- 12,906,000

jan 12'  -- 12,858,000

dec 11'  -- 13,197,000

nov 11'  -- 13,423,000

oct 11'  -- 13,859,000

2) The questionnaire had this question:

What is your weight?

a) 0-100

b) 100-125

c) 125-150

d) 150-175

e) 175 and above

What type of data is being requested? (Bold one)

Nominal Ordinal Interval Ratio

3) The following question was put on a questionnaire:

What was your last height?

What type of data is being requested? (Bold one)

Nominal Ordinal Interval Ratio

4. This symbol ( represents

a) subtraction

b) mean

c) mode

d) summation

e) none of the above

5. What is the top rule in Dr. D’s course?

6. Solve for ((()2:

1, 7, 8, 2, -3, 5, -1, 5

7. According to the video, The Joy of Statistics, how do you handle the variation in data?

a) Convert them into shapes

b) Locate similarities and make deductions and findings

c) Summarize data to make generalizations

8. What are 3 primary reasons why a researcher would choose a sample instead of locating the entire population?

9. Complete the frequency distribution

The local manager of Food Queen is interested in the number of times a customer shops at her store during a two-week period. The responses of 51 customers were: (Complete the distribution)

5 3 3 1 4 4 5 6 4 2 6 6 6 7 1

1 14 1 2 4 4 4 5 6 3 5 3 4 5 6

8 4 7 6 5 9 11 3 12 4 7 6 5 14 1

1 10 8 9 2 12

Classes	F	RF	CRF
0 - 2
3 – 5
6 – 8
9 – 11
12 - 14

Data: Frequency Distributions and Graphic Presentation

10. OWN TV quantified the color of eyes of all Tuesday night actresses on their sitcoms. What is that type of data? (Underline one)

Nominal Ordinal Interval Ratio