Question

Joanna takes dance classes everyday. There are 8 girls in her class.
The table lists the ages of the girls in Joanna's class. Use the table for questions 1 - 4.
Age of Dancers
1. Find the mean age of the dancers in Joanna's class. (1)
Name Age
Sol:
Joanne 11
Suhana 13
Shwetha 10
Manya 13
Leya
10
Grace 11
Hemaya 15
Krithika 13​

Answer 1

Answer:

12 is the mean age

Step-by-step explanation:

11+13+10+13+10+11+15+13

Okay now when we added ALL these numbers the answer is 96

Now since there are 8 numbers that we added, so now we should divide 96 with 4 =96/4

Which is now equal to 12

Therefore the mean age is 12

HOPE ITS HELPFUL

IF IT IS

PLEASE MARK AS BRAINLIEST!

please

Answer 2

Given:

Ages of 8 girls taking dance classes with Joanna.

To Find:

Mean age of the dancers in Joanna's class.

Solution:

We know that mean of any given data can be defined as the ratio of the sum of all the observations to the total number of observations.

Here the total number of girls given is 8 and the ages of the girls given are 11, 13, 10, 13, 10, 11, 15, and 13.

So the mean age will be

x̄ $=\frac{11+13+10+13+10+11+15+13}{8}$

  $=12yrs$

Hence, the mean age of dancers in Joanna's class is equal to 12 years.

#SPJ3