Question

test 1= 70 test 2= 72 test 3= 65 test 4 =68 test 5= 85 find the probability that the students get
a) more than 90percent marks
b) more than 70 percent marks​

Answer 1

Outcomes : {70,72,65,68,85) = 5

Marks more than 90 % = 0 time

The Probability of getting more than 90% marks = 0/5 : 0

Marks more than 70% = 2 times ( 72 , 85 )

The Probability of getting more than 70% marks = 2/5 : 0.4