Question

Calculate the mean, median and the mode. 5,7,20,6,4,3,2,5,5,7

Answer 1

Answer:

the median is 3,2 and the mode is 5

Answer 2

To find the mean of a dataset, you must follow 2 steps:

• Add all the numbers in the dataset.
• Divide by how many there are.

In this case, we must add

5+7+20+6+4+3+2+5+5+7

12+49+7

12+56

68

We have 10 numbers, so we divide by 10:

6.8 is the mean

For the median, we must simply find the number in the middle.

If we have an even number of numbers, we find the mean of the numbers in the middle.

It's 4&3:

4+3=7

7:2=3.5

So the median is 3.5

The mode is the numebr which is seen most often in the set.

Here it's 7 and 5 so the set has 2 modes.

Hope it helps! :)