Question

The heights of the students of a class is measured and recorded as given below :-

A student is selected at random. Find the probability that height of the student is :-

( i ) More than 135 cm

( ii ) At least 145 cm

( iii ) Less than 130 cm

( iv ) 125 cm or more but less than 140 cm​

Answer 1

(i)3+5+9+8 = 25 students

(ii) 7+7+11+3+53D33 students

(iii) 7+7= 14 students

(iv) 7+11+3 = 21 students