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]2 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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In the given diagram, what is the measure of ∠ABC of parallelogram ABCD?

nata0808 [166]

<h3>Answer: C) 136 degrees</h3>

The known acute angle of the triangle is 46 degrees, so the unknown acute angle of that triangle is 90-46 = 44 degrees. In other words, the two acute angles of any right triangle must add to 90, so 46+44 = 90.

The 44 degree angle is adjacent to angle ADC, and it adds to angle ADC to form 180 degrees.

If x is the measure of angle ADC, then

44+(angleADC) = 180

44+x = 180

x = 180-44

x = 136

angle ADC = 136 degrees

For any parallelogram, the opposite angles are always congruent. Therefore, angle ABC is equal to angle ADC = 136, making ABC = 136 as well.

3 0

3 years ago

Read 2 more answers

Can someone tell me if I'm right or give me the answer? plzzz. I'm giving 100 points so... just answer quick. 0_0