Calculate the mean of each data set below. Can you find any shortcuts that allow you to find the mean without having to do much calculation?

a. 6, 10, 6, 10

b. 11, 12,12, 13, 12

c. 0, 5, 4 8, 0, 7

What is 55.2 divided by 46?

The measure of dispersion which is not measured in the same units as the original data is the a. variance b. standard deviation c. median d. coefficient determination

Change 14 to a fraction.

The Line A bus arrives at the bus stop every 25 minutes and the Line B bus arrives every 15 minutes. Both are at the bus stop right now. In how many minutes will both be at the bus stop again?

There are xboys playing in the park. The number of girls playing in the park is equal to the square root of the number of boys. If the total number of boys and girls playing in the park is 42, find the number of boys. A. 49 B. 6 C. 36 D. 7

Log 8x - log 2 = log 32

Use a transformation to solve the equation. h + (-3) = - 0.6 h = 3.6 h = - 2.4 h = 2.4 h = - 3.6

the expressions 4b-6 and 2b+4 represent the lengths of the diagonals of parallelogram wxyz for what value of b is wxyz a rectangle

2x+y=12 and 2x+6y=-8

A stretch of highway that is 12 1 4 12 4 1 12, start fraction, 1, divided by, 4, end fraction kilometers long has speed limit signs every 7 8 8 7 start fraction, 7, divided by, 8, end fraction of a kilometer.