what arethe differences between statistics as numerical facts and statistics asa discipline or field of study?

2. Think about the following frequency distribution.

Class

Frequency

10-19

10

20-29

14

30-39

17

40-49

7

50-59

2

Do the following in Excel:

Construct a cumulative frequency distribution and a cumulative relative frequency distribution.

Construct a histogram for the data in exercise.

3.The average number of times Americans dine out in a week fellfrom 4.0 in 2008 to 3.8 in 2012(Zagat.com, April 1, 2012). The number of times a sample of 20 families dined out last week provides the following data:

6

1

5

3

7

3

0

3

1

3

1

2

4

1

0

5

6

3

1

4

Do the following in Excel:

a.Compute the mean and median.

b.Compute the first and third quartiles.

c.Compute the range and interquartile range.

d.Compute the variance and standard deviation.

e.The skewness measure for these data is 0.34. Comment on the shape of this distribution. Is it theshape you would expect? Why or why not?

f.Do the data contain outliers?