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standard deviation: 2.582 (rounded)

mean: 7

Mean Definition:

The mean is the average(the sum of all of the numbers added together than divided by the amount of numbers.)

Mean Equation: (4+6+8+10)÷4=7

Standard Deviation Definition:

The standard deviation is a measure the amount of variation between the numbers.

Standard Deviation Equation:

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.