Question

A mathematics teacher asks students to collect the marks of Mathematics in Half

yearly exam. She instructed to all the students to prepare grouped frequency

distribution table with class size 10 using the data collection. Ram collected the

following marks (out of 50) obtained in Mathematics by 40 students of class IX.

21,10,30,22,33,5,37,12,25,42,15,39,26,32,18,27,28,19,29,35,31,24,36,18,2

0,38,22,44,16,24,10,27,39,28,49,32,23,31,21. How many students scored more than 20 but less then 30?

a. 12 b.13 c.14 d.15

1

42 How many students scored less than 20 marks?

a. 10 b. 11 c.13 d. 14

1

43 How many students scored more than 60% marks?

a. 14 b.13 c. 20 d.15

1

44 What is the class mark of the class 30-40?

a. 30 b. 35 c. 40 d. 70

1

45 What is the upper limit of the class 0-10?

a. 0 b. 10 c. 5 d.8​

Answer 1

Answer:

c) 14 , c) 13, b) 13,

Step-by-step explanation:

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