Question

the table shows data for two groups of plants, one grown with fertilizer and the other without fertilizer. effect of fertilizer on plant growth no fertilizer fertilizer height of plants (cm) 24.1 30.5 25.9 32.1 25.4 40.6 24.1 30.5 35.6 33.8 what is the mean height of the plants given fertilizer? a. 33.5 cm b. 27.0 cm c. 30.5 cm d. 32.1 cm

Explanation:

Step1: Identify data for fertilized plants

Data points are 30.5, 32.1, 40.6, 30.5, 33.8

Step2: Calculate sum of data

$30.5 + 32.1+40.6 + 30.5+33.8=167.5$

Step3: Determine number of data points

There are 5 data - points.

Step4: Calculate the mean

Mean = $\frac{167.5}{5}=33.5$

Answer:

A. 33.5 cm