The given histogram shows the heights of the students.
The number of students whose height in the class interval 170-175 is what percent less than the numbers of students whose heights is in interval 165 - 170 ?
( correct to one decimal place )
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 14.3%
Number of students in the interval of 170-175 = 12
Number of students in the interval of 165-170 = 14
Difference = 14 - 12 = 2
Percentage = (Difference/Number of students in the interval of 165-170) × 100
Percentage = (2/14) × 100 = 14.28 ≈ 14.3%
Students in the class interval of 170-175 are nearly 14.3% less than the students in the class interval of 165-170