3 years ago

(picture) is this the correct way to solve 19?

Mathematics

1 answer:

3241004551 [841]3 years ago

3 0

Yes.

Your solution is <em>a</em> correct way to solve it. There is more than one correct way.

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Supposed Blue spruce was included in the list and the mean decreased to 165 what is the height of the Blue spruce?

postnew [5]

The height of the blue spruce was 45.

We find the mean by adding all of the data points and dividing by the number of data points. We will add the unknown value x and change the number we're dividing by to 7:

(160+320+100+110+200+220+x)/7 = 165
(1110+x)/7 = 165

Multiply both sides by 7:
1110 + x = 1155

Subtract 1110 from both sides:
x = 45

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