Question

in the Word MATHEMATICS, what is the probability of choosing a vower
esterday guiloup showing marks secured in mathematics by students of class IX
Marks 0-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90 90-100
secured
Frequency o
9
10
10
8
2
Find the probability of getting marks
(1) less than 50%
(m) 90 % and above
Total no of students=0-1-9-10-10-8-5-3-2-48
Pigetting marks less than 50%
Pigetting marks 90°. and above -​

Answer 1

Step-by-step explanation:

a,e,i,o,u

there are 4 letters there for the probability is 1/4

a) total no. of students 18 and less than 50% means 9 students which means 9/18 or 1/2

b) total student 18 more than 90% means 3 students i.e 3/18 or 1/6