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3 years ago

12,13,15,16,19,19,19,20,21,25 find the mean

Mathematics

2 answers:

lesya [120]3 years ago

5 0

Answer:

17.9

Step-by-step explanation:

Add all of the numbers together.

You get 179

Divide by the amount of numbers, 10

you get 17.9

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Daniel [21]3 years ago

3 0

Answer:

17.9

Step-by-step explanation:

We have given a set of values.

12,13,15,16,19,19,19,20,21,25

We have to find mean of above values.

Mean is equal to the ratio of sum of all values to total number of values.

Mean = sum of values / number of values

Sum of values = 12+13+15+16+19+19+19+20+21+25

Sum of values = 179

Total number of values = 10

Hence,

Mean = 179 / 10

Mean = 17.9 which is the answer.

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262.44 cubic metres.

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First, we can calculate the volume of the cylinder by doing pi * r^2 * h. In this case, r is 5 / 2 and h is 7.

pi * (5/2)^2 * 7 = pi * 25/4 * 7 = pi * 6.25 * 7 = pi * 43.75 = 3.14159265 * 43.75 = 137.4446784 cubic m.

Seconds, we calculate the volume of the cube. It is 5^3 = 5 * 5 * 5 = 25 * 5 = 125 cubic m.

137.4446784 + 125 = 262.4446784, which is about 262.44 cubic metres.

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