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Answer:

C. 78 cm

Step-by-step explanation:

The mean of any given data set is calculated as sum of all data set divided by the number of data set given.

The data set for the height of Bella's corn given, is 81, 88, 69, 65, 87

Mean height of Bella's corn = [tex] \frac{81 + 88 + 69 + 65 + 87}{5} [/tex]

[tex] mean = \frac{390}{5} [/tex]

[tex] mean = 78 cm [/tex]

You are required to calculate the mean of the height, in other words, the average of the height

The mean of the height is 78

Given height

81, 88, 69, 65, 87

Mean = Total height / number of height

= (81 + 88 + 69 + 65 + 87) / 5

= 390 / 5

= 78

Mean of the height = 78

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