Janette is growing tomato seedlings. She just took measurements of her seedlings, and here are her data, in centimeters.

Question

4, 3.5, 6, 7.2, 5, 6.1, 3.6, 7.1, 3, 3.2
What are the mean and median seedling heights?
(1 point)
Mean=
cm. Median= cm.

Answer 1

To find the mean, add up all the measurements and divide by the total number of measurements.

Mean = (4 + 3.5 + 6 + 7.2 + 5 + 6.1 + 3.6 + 7.1 + 3 + 3.2) / 10
Mean = 48.7 / 10
Mean = 4.87 cm

To find the median, first put the measurements in order from smallest to largest:

3, 3.2, 3.5, 3.6, 4, 5, 6, 6.1, 7.1, 7.2

Since there are an even number of measurements (10), the median is the average of the two middle numbers.

Median = (4 + 5) / 2
Median = 4.5 cm

Therefore, the mean seedling height is 4.87 cm and the median seedling height is 4.5 cm.