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Calculate the Mean, Median and Mode of the following data set for each column. You should have separate mean, median and mode for each column A-G

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There are four (4) problems in this sixth (6th) Quiz.  Problems 1 and 2 are worth 40 points each, for a total of 80 points for the two problems.  Problems 3 and 4 are worth 10 points each, for a total of 20 points.  Quiz total is 100 points.  Please use a keyboard or editor where possible.

1.    Calculate the Mean, Median and Mode of the following data set for each column.  You should have separate mean, median and mode for each column A-G:

A

B

C

D

E

F

G

18

10

28

91

112

255

52

13

9

28

89

106

245

42

16

5

19

81

111

252

51

14

6

20

81

107

252

51

14

6

21

87

110

248

43

 

6

22

83

108

248

43

 

 

 

83

109

248

43

 

 

 

 

109

249

50

 

 

 

 

 

249

49

 

 

 

 

 

 

46

 

 

 

 

 

 

 

2.   University of Maryland has 5 separate colleges located in and around the Washington Beltway.  They wish to know the average SAT score of the first year students enrolled at the University.  The Mean and Enrollment for each of the colleges are presented below.  Find the mean SAT score for the entire sample:

 

College

1

2

3

4

5

Mean Score

509.70

489.33

516.89

503.44

519.76

Enrollment

225

180

211

162

195

 

3.   Please answer the following multiple choice questions about the table as presented

 

X

A

B

C

 

5

6

12

7

 

4

13

14

9

 

3

11

6

3

 

2

7

2

7

 

1

2

1

6

 
         

a:

Each group has the same

 
 

i

number

   
 

ii

mean

   
 

iii

median

   
 

iv

mode

 

 
 

v

skew

   
         

b:

The distribution of scores for B is

 

i

symmetrical

 
 

ii

normal

   
 

iii

positively skewed

 
 

iv

negatively skewed

 

 

v

none of the above

 

 

4.   A distribution score yields a mean of 40, median of 38 and mode of 36.

a.    What would median be if we add 12 points to each score

                                              i.     40

                                            ii.     42

                                          iii.     50

                                          iv.     52

b.    What is the new mean (adding 12 points to each score)?

                                              i.     40

                                            ii.     42

                                          iii.     50

                                          iv.     52

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