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mylen [45]
3 years ago
12

Harry asked a sample of 4 people how many siblings they had. Here are their responses:

Mathematics
1 answer:
earnstyle [38]3 years ago
6 0

Answer:

Formula of standard deviation = √Variance

Standard deviation = 1

Step-by-step explanation:

X-bar is the variance

Therefore, the answer would be

√X-bar

√1 = 1

!!

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What is the area of a square deck, if one side is 10 feet long?
My name is Ann [436]
Since we know the length of one side, and it's a square, we simply multiply 10 by 10 to get 100. The final answer is 100 square feet.
6 0
4 years ago
Convert 210° from degrees to radians. Use the value of π found on a calculator, and round answers to four decimal places, as nee
Lynna [10]
There is two ways to measure an angle: in degrees and radians.

 To solve the exercise above and convert 210° from degrees to radians, you have to mutilply it by π and divide it by 180°, as below:

 210° to radians:

 =(210°xπ)/180°

 Therefore, the result is:

 =(7/6)π radians
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3 0
3 years ago
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The equation of the line of best fit for a scatter plot is yˆ=−14x+10 where x is age in years and y is average number of hours o
son4ous [18]

Hey there!

y = -1/4x + 10

Looking for the amount of hours of sleep for an 8 year old, so x is 8.

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The predicted number of average hours of sleep for an 8 year old is 3. 8 hours.

Hope this helps!

5 0
3 years ago
What is the product of −3/11 and <br> −2/15?
Dafna11 [192]
Multiply -3/11 and -2/15 straight across

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hope this helps
5 0
3 years ago
Read 2 more answers
What is 258/300 as a percent
Step2247 [10]
To transform it into percent we want to have 100 into denominator. The easiest way is divide numerator and denominator by 3 (thats because than it doesnt change the value of fraction), so:
\frac{258}{300}= \frac{258:3}{300:3}= \frac{86}{100} = 86% - its the result
4 0
4 years ago
Read 2 more answers
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