Question

a teacher had her students write down the amount of time it took them to complete a question. the results of her class of 25 students are found below. what percentage of her students wrote that they took 4 minutes to complete the problem?

Explanation:

Step1: Find the number of students who took 4 minutes

From the bar - graph, the number of students who took 4 minutes is 3.

Step2: Find the total number of students

The total number of students is 25.

Step3: Calculate the percentage

The formula for percentage is \(\text{Percentage}=\frac{\text{Part}}{\text{Whole}}\times100\%\). Here, the part is 3 (students who took 4 minutes) and the whole is 25 (total students). So, \(\text{Percentage}=\frac{3}{25}\times100\%=(3\times4)\% = 12\%\)

Answer:

12%