Question

find the mean, median and mode of the following data set: 8, 12, 15, 3, 7, 10, 15

Answer 1

given:

8, 12, 15, 3, 7, 10, 15

to find:

mean, median and mode.

solution:

mean:

to find mean you'll have to add all of the numbers and divide by the number of numbers in the data set.

$\frac{(8 + 12 + 15 + 3 + 7 + 10 + 15)}{7}$

$= \frac{70}{7}$

$= 10$

median:

to find median you'll have to order the numbers either in descending or ascending, and find the number in the middle.

$3 \: 7 \: 8 \: 10 \: 12 \: 15 \: 15$

=10

mode:

most frequently occurred number is the mode.

$= 15$