Question

1. The percentage of marks obtained by a student in the monthly unit tests are given below:
Unit Test
I
II
III
IV
V
65
74
86
62
93
% of marks
obtained
Find the correct answers of the following:
(1) Probability that the student gets at least 60% or above
(a) 1
(b) 0.14
(c) 0.56
(d) 0.3
(ii) Probability that the student gets marks between 64% and 90%
(a) 0.26
(b) 0.6
(c) 0.7
(d) 0.3
(iii) Probability that the student gets at least 75% or above
(a) 0.2
(b) 1
(c) 0.4
(d) 0.14
(iv) Probability that the student gets less than 70% marks
(a) 0.4
(b) 0.56
(c) 0.86
(d) 0.3

Answer 1

Answer:

Probability that the student gets at least 75% or above

(a) 0.2

(b) 1

(c) 0.4

(d) 0.14

Step-by-step explanation:

Probability that the student gets at least 75% or above

(a) 0.2

(b) 1

(c) 0.4Probability that the student gets at least 75% or above

(a) 0.2

(b) 1

(c) 0.4Probability that the student gets at least 75% or above

(a) 0.2

(b) 1

(c) 0.4

(d) 0.14

(d) 0.14

(d) 0.14