Question

question #15
the data in the box represents the number of daily emails agatha received over a period of 2 weeks.
25, 27, 30, 31, 32, 25, 33, 30, 31, 32, 30, 33, 27, 30
which dot - plot represents the data?

Explanation:

Step1: Count data frequencies

Count how many times each value appears in the data - set {25, 27, 30, 31, 32, 25, 33, 30, 31, 32, 30, 33, 27, 30}. We have: 25 appears 3 times, 27 appears 2 times, 30 appears 5 times, 31 appears 2 times, 32 appears 2 times, 33 appears 3 times.

Step2: Check dot - plots

Check each dot - plot to see if the number of dots above each value on the number line matches the frequencies we counted.

• In option A: The frequencies match our counts for values 25, 27, 30, 31, 32, 33.
• In option B: The frequency of 30 is incorrect.
• In option C: The frequency of 27 is incorrect.
• In option D: The frequency of 30 is incorrect.

Answer:

A.