Question

data regarding heights of students of class 10th of a school is given below. calculate the average height of students of the class .​

Answer 1

Answer:

The average height of students of the class is 165.2

Step-by-step explanation:

The highest frequency is 15.

•°• The modal class will be 162-168.

•°• l = 162

f0 = 7

f1 = 15

f2 = 8

h = 6

Mode =

=$l + ( \frac{f1 - f0}{2f1 - f0 - f2} ) \times h$

=$162 + (\frac{15 - 7}{2 \times 15 - 8 - 7} ) \times 6$

=$162 +(\frac{8}{15} ) \times 6$

=$162 + ( \frac{8}{5} ) \times 2$

=$162 + 1.6 \times 2$

=$162 + 3.2$

=$165.2$

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Answer 2

Answer:

Step-by-step explanation: