And he measure the height of five plants over 3 week experimental period and obtain the following data for the final week in centimeters 15 18 21 19 20 calculate the final average of the group of plants around your answer to one decimal place a 4.2 who 13.3 the 18.6 the 6.0

Answer 1

To calculate the final average height of the five plants, we need to add the heights together and then divide by the number of plants.

The heights of the plants are: 15, 18, 21, 19, and 20 cm.

1. Sum the heights: \[ 15 + 18 + 21 + 19 + 20 = 93 \text{ cm} \]

2. Divide by the number of plants (5): \[ \text{Average height} = \frac{93}{5} = 18.6 \text{ cm} \]

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

So the correct answer is 18.6.