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LECTURE: WEEK 4        

IN WHICH OF THE 4 QSF 2007 GATEWAY TESTS DID THE STUDENTS PERFORM BEST?

POPULATION: ALL THE QSF STUDENTS

SAMPLE:       CHOOSE 10 STUDENTS AT RANDOM

 

 

 

TALLY

 

FREQUENCY

 

GW 1

 

 1

 

1

 

GW 2

 

 1111

 

5

 

GW 3

 

 111

 

3

 

GW 4

 

 1

 

1

BAR GRAPH OF THESE DISCRETE DATA               

 

 

 

 

 

 

 LECTURE WEEK 5

 

BAR GRAPH (FOR DISCRETE DATA)

F

R                

E

Q

U

E

N

C

Y                                                                               

 

                                              NUMBER OF CHILDREN IN FAMILY

 

  1. Find the mean, modal and median number of children per family.

 SOLUTION

MEAN  = 

MODAL NUMBER OF CHILDREN =   2

MEDIAN NUMBER OF CHILDREN =  2

 

 

 

 

 

 

 

 

  DESMOND DESAI, DMD EDU-HOME, 2007

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