Answer to Question #326177 in Statistics and Probability for Robera

Question

Suppose data collected for heights (in cms) 0f 390 cows were tabulated in a frequency

distribution and thefollowing results were obtained.

fi: 6, 25, 48, 72, 116, 60, 38, 22, 3

CM1 =112, CM2=117 where CMi i

th class mark

Determine:

a. the class interval size (class width)

b. the class limits

c. class boundaries

d. class marks

e. the less than cumulative frequency distribution

f. the class intervals having the highest frequency

g. Above which height do we find 50% of the cows?

h. Below which height do we get 25% of the cows?

Draw

A. histogram

B. a frequency polygon

C. a less than ogive for the above data