find the percentage of students whose height is equal to or more than the 140 CM
Answers
Given : histogram shows the height of 50 students of a class.
To Find :
a. Find the percentage of students whose height is equal to or more than
140cm.
b. How many students have height less then 140 cm?
Solution:
130 - 135 10
135 - 40 22
140 - 145 9
145 - 150 6
150 - 155 3
Total 50
students whose height is equal to or more than 140cm.
140 - 145 , 145 - 150 , 150 - 155
= 9 + 6 + 3
= 18
Percentage of students whose height is equal to or more than 140cm = 100 x 18/50
= 36 %
36 % students whose height is equal to or more than 140cm.
students have height less then 140 cm
130 - 135 , 135 - 140
10 + 22 = 32
32 students have height less then 140 cm
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