Question

Carlos keeps track of his math scores of tests. His scores on his math tests are

the following: 100, 88, 50, 50, 90, 70, 80 What is the:
Median?
Mode?
Mean?
Range?

Answer 1

Median: 75

Mode: 50

Mean: ≈ 75.4

Range: 50

Explanation:

Median:

Arrange the numbers in order:

50, 50, 70, 80, 88, 90, 100

There is no exact middle number.

`70 + 80 = 150\\150/2 = 75`

The median is about 75.

Mode:

50, 50, 70, 80, 88, 90, 100

"50" appears the most.

The mode is 50.

Mean:

Add all numbers in the set.

`100+88+50+50+90+70+80 = 528`

Divide by the number of values in the set.

`528/7 = 75.4285714286`

75.4285714286 ≈ 75.4

The mean is about 75.4.

Range:

Subtract the smallest number in the data set from the largest number in the data set.

`100-50=50`

The range is 50.

Brainilest appreciated.