Sample annual salaries (in thousands of dollars) for public elementary school teachers are listed. find the sample standard deviation. round to two decimal places if necessary
23.9
15.3
40.2
30.3
21.0
22.8
id: es6l 2.4.1-9+

The standard deviation is 9.34

Step-by-step explanation:

First we need to find mean of the sample:

Standard deviation will be like below:

central angle of a triangle has the same measure as its intercepted arc.

step-by-step explanation:

the given 6 = w/p is equivalent to 6p = w, where w is the total area of the walls and p is the area covered by a single can of paint.

knowing that 6 cans of paint will be needed, 6p = w becomes 6(6) = w = 36.   this tells us that the total area to be painted is 36 square units.