Question

The ages of students in a class have been put into the frequency distribution below. Age number of students 18 3 19 5 20 28 21 4 what is the average age of these students?

Answer 1

Answer:

114.5

Step-by-step explanation:

sum of ages = 18+3+19+5+20+28+21+4 =118

no. of students = 8

average age = 118/8 = 114.5

Answer 2

given number of students: 18, 3 ,19 ,5, 20, 28, 21, 4

total number of students = 8

To find : average

solution

using the formula

$average = \frac{\text{sum of all the observation}}{\text{total observation}}$

then

sum of all observation = 18+ 3 +19 +5+ 20+ 28+ 21+ 4 = 118

total observation = 8

then

$average = \frac{118}{8}$

average = 14.75

hence , The average age of these students is 14.75

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