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3 years ago

How do you find the mean?

2 answers:

7 0

Add all the numbers in the list then divide it by how many numbers are in that list. Ex. 5,8,1,4 Would be: 5+8+1+4= 18 divided by 4 which is 4.5

dalvyx [7]3 years ago

7 0

To find the mean of a data set, you need to take all the data in the set and add them together.

Example: Sarah scored these numbers on her midterms every quarter: 89, 97, 76, & 62. What is the mean of her test scores?

So, add all the scores together.

89 + 97 + 76 + 62 = 324

After adding the scores together, you need to divide the sum by the number of numbers in the data set.

324 ÷ 4 = 81

So, the mean, or average of her test scores is 81.

I hope I helped :)

- Shay❤

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5+8=6+7 true or false

Romashka-Z-Leto [24]

Answer: True becuase 5+8 equals 13 and 6+7 also equal 13 so that means that they are equal to each other.

Step-by-step explanation:

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3 years ago

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Solve the proportion: 11/12.1= x/66 x = <br> A. 64.9 <br> B. 60<br> C. 72.6 <br> D. 55

solmaris [256]

$\dfrac{11}{12.1}=\dfrac{x}{66}\qquad\text{cross multiply}\\\\12.1x=(11)(66)\\\\12.1x=726\qquad\text{divide both sides by 12.1}\\\\x=60\\\\Answer:\ B.\ 60$

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4 years ago

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coldgirl [10]

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4 years ago

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The circumference of the circle is 9.42 inches, What is the diameter of the circle?

Elena L [17]

EXPLANATION

Since the circumference of the circle is 9.42, we can get the diameter by applying the following relationship:

$Circumference=2\pi r=2\pi\frac{d}{2}=\pi d$

Isolating the diameter:

$Diameter=\frac{Circumference}{\pi}$

Plugging in the numbers:

$Diameter=\frac{9.42}{3.14}=3$

Therefore, the diameter is equal to 3 inches.

5 0

1 year ago

A square park has an area of 6561 square meters. If you walk around the park what is the distance that you would have walked?

Paraphin [41]

First we have to find length of 1 side of the square. We can use formula for area of the square. A=a*a ==> $A=a^2$ where a is length of the side.
From this formula we can find
$a= \sqrt{A}$
a= $\sqrt{6561} =81 - 1 side$
Now we just have to multiply it by 4, because there are 4 sides.
81*4=324 - its the answer

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3 years ago