Question

Find median for the following data : Class Interval 10-19 20-29 30-39 40-49 50-59 60-69 70-79
frequency 2 4 8 9 4 2 1 respectively ​

Answer 1

Answer:

median = 42.82 mode =44.1

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Answer 2

Answer:

upto 49 - 23

Step-by-step explanation:

CLASS INTERVAL FREQUENCY

10 -19 2

20-29 4

30-39 8

40-49 9

50-59 4

60-69 2

70-79 1

CLASS INTERVAL FREQUENCY

upto 19 2

upto 29 6

upto 39 14

upto 49 23

upto 59 27

upto 69 29

upto 79 30

So there are 7 of them and it's median frequency is upto 49 - 23