Question

prepare a frequency table of the following scores obtained by 30 students in a test

42,21,37,45,37,38,23,17,11,43,7,35,14,27,31,23,26,27,5,35,48,6,19,28,36,24,29,10,15,29​

Answer 1

Step-by-step explanation:

The frequency distribution table for the given marks can be drawn as:

(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.