Question

the following histogram displays data from a cable repair companys in - home service calls. the technicians were asked to record how long each visit took. approximately what percentage of service calls lasted less than 60 minutes? round you answer to the nearest percent.
answer

Explanation:

Step1: Calculate total number of service calls

Sum up all frequencies: \(32 + 19+41 + 22+50 + 35=199\)

Step2: Calculate number of service calls less than 60 minutes

Sum frequencies of \(0 - 29\) and \(30 - 59\) intervals: \(32+19 = 51\)

Step3: Calculate the percentage

Use the formula \(\text{Percentage}=\frac{\text{Number of calls}<60}{\text{Total calls}}\times100\). So \(\frac{51}{199}\times 100\approx25.63\)

Answer:

\(26\%\)