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A sample of 500 respondent yielded the distribution of age: Interval 30 to 39 40 to 49 50 to 59 60 to 69 70 and over Frequency 35 125 110 115 95 20

A sample of 500 respondent yielded the distribution of age:


Interval

30 to 39

40 to 49

50 to 59

60 to 69

70 and over


Frequency

35

125

110

115

95

20


a) what is the mode of the distribution?

b) what is the proportion outside the mode?

c) what is the median of the distribution?

d) What is the inter-quartile range?

e) what is the inter-decile range?

Top Answer

Firstly I make class intervals continuous by adding and... View the full answer

New Doc 2019-05-03 23.33.10_1.jpg

INTERVAL
FREQUENCY
Cumulative_ Frequency
19 . 5 - 29 . 5
35
35
29 .5 - 39. 5
125
160
39 . 5 - 49 . 5
HO
270
49 . 5 - 59 . 5
115
385
59 . 5 - 69.5
95
480
69 . 5 over
20
500 = N = {{
( 1)| To Pind...

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