Question 13·Easy·Percentages
Call Ratings
| 1 Star | 2 Stars | 3 Stars | 4 Stars | Total | |
|---|---|---|---|---|---|
| Employee A | 16 | 49 | 72 | 8 | 145 |
| Employee B | 4 | 10 | 22 | 34 | 70 |
| Employee C | 8 | 56 | 45 | 16 | 125 |
| Employee D | 22 | 42 | 84 | 12 | 160 |
| Total | 50 | 157 | 223 | 70 | 500 |
A supervisor at a call center reviewed 500 calls taken by four employees and rated each call on a scale from 1 star to 4 stars. According to the table, to the nearest whole percent, what percent of Employee A’s calls received a rating of 1 star?
For table-and-percent questions, start by carefully reading the wording to find the correct subgroup: here, "Employee A’s calls" means your denominator is Employee A’s total, not the total for all employees. Then pick the specific count asked for (1-star calls) as the numerator, form the fraction part/whole, and convert it to a percent by dividing and multiplying by 100. Always check if you must round (nearest whole percent, tenth, etc.) and only then match your result to the answer choices. Sοurсe: anikο.аі
Hints
Focus on the correct row and column
Look only at the row for Employee A. Which number in that row shows how many of A’s calls got 1 star, and which number shows Employee A’s total calls?
Set up the correct fraction
You want the percent of Employee A’s calls that were 1 star. In the fraction part/whole, which number is the part (1-star calls), and which is the whole (all calls for Employee A)?
Convert the fraction to a percent and round
After you form the fraction for Employee A, divide the numerator by the denominator to get a decimal. Then multiply by 100 to make it a percent, and be sure to round your final answer to the nearest whole percent.
Desmos Guide
Use Desmos to compute the percent
In Desmos, type (16/145)*100 and look at the output. That value is the percent of Employee A’s calls that were 1 star; then round that result to the nearest whole percent. (Anіко.аі)
Step-by-step Explanation
Identify the relevant numbers in the table
The question asks about Employee A’s calls that received a rating of 1 star.
From the table:
- Number of Employee A’s 1-star calls:
- Total number of Employee A’s calls:
These are the two numbers you need to find the percent of Employee A’s calls that were 1 star.
Write the percent as a fraction of part over whole
A percent is calculated as Ѕourcе: anіkо.аi
- part ÷ whole × 100.
Here:
- The part is the number of 1-star calls for Employee A: .
- The whole is the total number of calls for Employee A: .
So the fraction to convert to a percent is
Then you will multiply this value by to get a percent.
Calculate the value and round to the nearest whole percent
First, divide by :
Now convert this decimal to a percent by multiplying by :
So about % of Employee A’s calls were rated 1 star. Rounding % to the nearest whole percent gives 11%, which corresponds to choice B) 11%.