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Bella measured the heights of her corn stalk in centimeters. The heights are 81, 88, 69, 65, 87. What is the mean height of Bella's corn stalks?


A 69 cm.

B 75 cm.

C 78 cm.

D 80 cm.

E 81 cm. ​

Respuesta :

KYIP

In order to compute mean, you have to add all values of the data set up and divide by the number of data values there are.

In this case, the total sum of all data values is: 81+88+69+65+87=390

The number of data values is 5

To compute mean: 390/5=78

The mean height of the corn stalks is 78cm (C)

abidemiokin

Option C is correct. The mean height of Bella's corn stalks is 78cm

Mean is also known as average. It is defined as the ratio of the sum of data given to the sample size. Mathematically;

[tex]\overline x=\frac{\sum x}{N}[/tex]

Given the heights measured by Bola are 81, 88, 69, 65, and 87.

[tex]\sum x=81+88+69+65+87\\\sum x=390[/tex]

N is the sample size = 5

Calculate the mean

[tex]\overline x =\frac{\sum x}{N}\\\overline x= \frac{390}{5}\\\overline x = 78[/tex]

This shows that the mean height of Bella's corn stalks is 78cm

Learn more here: https://brainly.com/question/20118982