Anvi measured the height of five plants over a three-week experimental period and obtained the following data for the final week (in cm):

15, 18, 21, 19, 20

Calculate the final average height for this group of plants. Round your answer to one decimal place.

(1 point)
Responses

18.6 cm
18.6 cm

4.2 cm
4.2 cm

6.0 cm
6.0 cm

13.3 cm
13.3 cm
Remaining Attempts : 3
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1 answer

To calculate the average height of the five plants, you will need to sum their heights and then divide by the number of plants (which is 5).

The heights measured are: 15, 18, 21, 19, and 20 cm.

  1. First, add these values together: \( 15 + 18 + 21 + 19 + 20 = 93 , \text{cm} \)

  2. Next, divide the total by the number of plants: \( \frac{93}{5} = 18.6 , \text{cm} \)

Thus, the final average height for this group of plants is 18.6 cm.