Question

Find the mean median and mode of the data set round tenth 15 , 4 , 4, 8, 7 ,15 ,4 ,15,4 ,5

Answer 1

Hello!

First, let's find the mean. We add up all of our numbers and divide by the number of numbers.

15+4+4+8+7=15+4+15+4+5=81

81/10=8.1

Therefore, our mean is 8.1.

Now we need to find the median. To do so, we first order our numbers from least to greatest.

4,4,4,4,5,7,8,15,15,15

Now we need to find the middle number. As there are 10 numbers, we find the mean of the two middle numbers, which are 5 and 7.

5+12

12/2=6

Therefore, our median is 6.

Now, we need to find the mode. This is the number that appears the most. As you can see, 4 appears the most.

Therefore, 4 is our mode.

I hope this helps!

Answer 2

Mean is the average. To calculate mean, add all the numbers and divide by how many numbers there are.

$15 + 4 + 4 + 8 + 7 + 15 + 4 + 15 + 4 + 5 = 81$

There are 10 numbers. Divide by 10

$81 \div 10 = 8.1$

The mean is 8.1

Median is the middle number when ordered from least to greatest. Order the numbers:

$4, 4, 4, 4, 5, 7, 8, 15, 15, 15$

The 2 middle numbers are 5 and 7. Add them together and divide by 2

$7 + 5 = 12 \\ 12 \div 2 = 6$

The median is 6

Mode is the number that appears most often.

$4 \rightarrow 4\ times \\ 5 \rightarrow 1\ time \\ 7 \rightarrow 1\ time \\8 \rightarrow 1\ time \\ 15 \rightarrow 3\ times$

4 appears the most. The mode is 4