Question

In 10-20, 20-30, 30-40, 40-50, 50-60, 60 - 70 etc.. (a) What is the width of the class intervals? (b) Which is the lower limit of the 5th class interval?​

Answer 1

Step-by-step explanation:

i) The class interval (40−49) has the highest frequency and the class interval (90−99) has the lowest frequency.

(ii) In the class interval (30−39), the lower limit is 30 − 0.5 = 29.5 and the upper limit is

39 + 0.5 = 39.5.

(iii) The range of the given distribution is 97− 32 = 65.