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.
median:
to find median you'll have to order the numbers either in descending or ascending, and find the number in the middle.
=10
mode:
most frequently occurred number is the mode.