Question

2. The marks scored by a student in 5 tests are given below :
1
Test
2
3
5
4
75
Marks scored
82
78
86 )
91
Find the probability that in any test selected at random, the student has scored
(1) more than 70 marks, (2) more than 80 marks and (3) more than 90 marks.
be​

Answer 1

Answer:

1) 100%

2) 60%

3)20%

Step-by-step explanation:

the question is not clear, but i take marks in 5 tests are

75,82,78,86 and 91

so here for 1) more than 70, here in all the 5 tests, he got more than 70

so probability =5/5=100 percent

2) here more than 80, out of 5 tests, in 3 of the tests , he got more than 80

so probability =3/5 *100 =60 percent

3) more than 90, he got more than 90 in only 1 test

so probability =1/5 *100 =20 percent

mark brainliest