Question

find the marks of 15 student in a certain test find the modal marks
18,22,25,42,39,35,25,33,34,25,29,37,35,25,40​

Answer 1

(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.

Answer 2

Answer:

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