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Draw an ogive of the data

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Reference no: EM133171765

QUESTION 1

There are 150 students in a class. The distribution if their marks in a mathematics test are as follows 

Class                                        frequency

0-9                                           3

10-19                                       10

20-29                                       17

30-39                                       x

40-49                                       35

50-59                                       y

60-69                                       18

70-79                                       10

80-89                                       5

90-99                                       2

Required

  1. The value of x given that the median mark is 44.357
  2. The value of y given that the modal is 43.0
  3. Draw an ogive of the data in (a) above

Use the ogive above to estimate 

  1. The 8th decile
  2. The 7-th percale
  3. The lower quartile

Reference no: EM133171765

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