A sample of 500 respondent yielded the distribution of age:
30 to 39
40 to 49
50 to 59
60 to 69
70 and over
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?
Firstly I make class intervals continuous by adding and... View the full answer