The standard deviation of a dataset is the square root of the variance.
The standard deviation of the same set of data is 4
The variance is given as:
Take the square root of both sides to calculate the standard deviation
Substitute 16 for 
.
So, we have:
Take the positive square root of 16
Hence, the standard deviation of the same set of data is 4
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Answer:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the
10
. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
2.3
×
10^
1
Step-by-step explanation:
9514 1404 393
Answer:
properties of addition let you add, subtract, or rearrange the terms of a sum as may be needed
Step-by-step explanation:
Properties of addition let you rearrange a sum to make addition easier to do or to check mentally. They also let you "undo" addition or subtraction in the process of solving algebra problems. And, they let you add terms or constants that may make it easier to rearrange expressions, as in "completing the square."
Answer:
13x^2 - 18x + 9
Step-by-step explanation:
<u>Step 1: Distribute the plus and minus signs</u>
(4x^2 - 5x + 6) + (9x^2 - 2x) - (11x - 3)
4x^2 - 5x + 6 + 9x^2 - 2x - 11x + 3
<u>Step 2: Combine like terms</u>
4x^2 <u>- 5x</u> <em>+ 6</em> + 9x^2 <u>- 2x</u> <u>- 11x</u> <em>+ 3</em>
13x^2 - 18x + 9
Answer: 13x^2 - 18x + 9
