Question

constructing a frequency distribution for non - grouped data
(b) there are four major phone plans available for these cell phone models.
but not every plan is available for every model.
the table below shows the plans available for the cell phone models.
how many cell phones sold at toms electronics yesterday can use the horizon plan?
phones

Explanation:

Step1: Find the frequency of model A and D

From the frequency - distribution table, the frequency of model A is \(5\) and the frequency of model D is \(4\).

Step2: Sum the frequencies

The number of cell - phones that can use the Horizon plan (models A and D) is \(5 + 4\).

Answer:

\(9\)