Question

(5)Refer to the table below:

Marks Number of students

0 – 20 7

20 – 30 10
30 – 40 10

40 – 50 20

50 – 60 20

60 – 7 15

70 – above 8

Total 90

(i) Find the probability that a student obtained less than 20% in the mathematics test.

(ii) Find the probability that a student obtained marks 60 or above.​

Answer 1

AA TO RHA HAI LEKIN BATANE KA MAN NHI HAI

Answer 2

Answer:

I)7/90

ii) 23/90

probability