3 years ago

What describes the standard deviation?

1 answer:

7 0

Answer:

Standard deviation is a number used to tell how measurements for a group are spread out from the average (mean), or expected value. A low standard deviation means that most of the numbers are close to the average. A high standard deviation means that the numbers are more spread out.

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If the price of an object went up 25% to $10.25 what was the original price?

Naily [24]

Answer:

$8.20

Step-by-step explanation:

125% = 10.25

1% = 0.082

100% = 8.20

8 0

3 years ago

Points (7,4) and (4,2) are found on line K. What is the slope of this line?

zysi [14]

Answer:

m= 2/3

Step-by-step explanation:

Use the equation y2-y1/x2-x1

3 0

3 years ago

50 pounds to 35 pounds percentage of change

iVinArrow [24]

Answer:

30%

Step-by-step explanation:

<h2><u>Percentage change </u></h2><h3>formula :</h3>

$\frac{change}{origional} * 100$

= 50 - 35 = 15

= $\frac{15}{50}*100\\$

4 0

4 years ago

What is 9x^2-18x-7÷(3x+1)

Phantasy [73]

81x - 126x ÷ 3x + 1
45x / 3x + 1
15x / x + 1

6 0

3 years ago

Label the percent bar below with the appropriate estimations.

Lapatulllka [165]

100÷4=25

25×4=100

so the answers for the a,b,and c is 25%

3 0

4 years ago