Question

B. The marks of 30 students in a Mathematics Test are given below: 62. 29. 36, 41, 52, 21. 50, 75, 78, 16, 20, 35, 46, 24. 57, 65, 82, 16, 25, 30. 12. 24 18, 32, 36, 57, 75. 16, 30, 58 c) Arrange these marks in a grouped distibution, where one of the groups is 35-45. (i) How many students have scored below 55 ? an) How many have scored above 75 ? (7) Write the class-size of the distribution. 70 65 Production of Rice a lakha) ===== T950-51 1900611970-7190-81 1990-91 We Har graph of the production of nice crop in India in different years, Read the bur praph and answer the following questions. 0. What was the crop production in 1980-81 ? 31? ) la which year, the crop-production was makin? ) Write the difference between maximum and minimum production​

Answer 1

Answer:

Please verify the question

Answer 2

Given:

The marks of 30 students in a Mathematics Test are -

62, 29, 36, 41, 52, 21, 50, 75, 78, 16, 20, 35, 46, 24, 57, 65, 82, 16, 25, 30, 12, 24, 18, 32, 36, 57, 75, 16, 30, 58.

To Find:

(i) How many students have scored below 55?

(ii) How many have scored above 75?

Solution:

Group Distribution -

11 - 15 = 1

16 - 20 = 5.

21 - 25 =  4.

26 - 30 = 3.

31 - 35 - 2.

36 - 40 = 2.

41 - 45 = 1.

46 - 50 = 2.

51 - 55 = 1.

56 - 60 = 3.

61 - 65 = 2.

66 - 70 = 0

71 - 75 = 2.

76 - 80 = 1.

80 - 85 = 1.

(i). How many students have scored below 55?

Answer: 20 students.

(ii). How many have scored above 75?

Answer: 2 students.