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Andrew [12]
3 years ago
7

QUESTION 60 What is the mean of the following set of data? Round your answer to two decimal places. {25, 32, 16, 21, 30, 18, 37}

Mathematics
2 answers:
harina [27]3 years ago
5 0

60.To be able to find the mean you add up all of the numbers and then divide it by how many there are.

25+32+16+21+30+18+37=179

179/7=25.57=B

61. To find the mode you look at the data and see which number occurs often (the most)

101,108,102,104,102,105,103,107

You can see that there are two 102's, so 102 is the answer=A

I hope this helps!

padilas [110]3 years ago
3 0

Question 60:

The answer is B. 25.57.

Mean is calculated by adding up all the values of a data set, and then dividing that sum by the amount of values.

25, 32, 16, 21, 30, 18, 37=179

179÷7=25.57

Question 61:

The answer is A. 102.

Mode is the number in a data set that appears most often. 102 shows up twice, while the other values only appear once. So 102 is the mode.

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A gardener is planting two types of trees:
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After 1 year, both the tress will be of the same height.

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⇒The growth of tree A in x years = x times  ( Height growth each year)

                                                        = 8 (x)  = 8 x

⇒Actual height of tree A in x years  = Initial Height + Growth in x years

                                                             = 7 + 8 x

or, the height of tree A after  x years  = 7 + 8x

Type B is 9 feet tall and grows at a rate of 6 inches per year.

⇒The growth of tree B in x years = x times  ( Height growth each year)

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⇒Actual height of tree B in x years  = Initial Height + Growth in x years

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According to the question:

After x years, Height of tree A  =Height of tree B

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Hence, after 1 year, both the tress will be of the same height.

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