Question

When algae began to grow in Marshall's fish tank, he started taking samples of the water each day to check the pH level. This line plot shows the distribution of pH levels of the water samples last month.

Fish tank water samples

6.8

7.0

7.2

7.4

PH

7.6

7.8

8.0

Complete the sentences.

The distribution of pH levels of the water samples is best described as

So, the mean

an appropriate measure of

Answer 1

The distribution of pH levels of the water samples is best described as **approximately normal or symmetric** (assuming there is a generally even spread of values around a central point based on typical pH levels in fish tanks).

So, the mean **is an appropriate measure of central tendency** to represent the average pH level of the water samples.