Question

1.The marks scored by 20 students in a test are given below: 84, 57, 53, 89, 41, 57, 47, 64, 58, 44, 53, 72, 51, 78, 71, 62, 56, 68, 54, 42 Complete the following frequency table: (i) What is the upper limit of 40–50? (ii) What is the upper limit of 70–80? (iii) What is the class size?

Answer 1

Answer:

40-50 is 47

70-80 is 78

class size is 10