For the following data, approximate the mean number of unused vacation days at the end of the year. $$\begin{array} { c | c }
\text { Days } & \text { Frequency } \
\hline 1 - 2 & 2 \
3 - 4 & 21 \
5 - 6 & 20 \
7 - 8 & 10 \
9 - 10 & 30
\end{array}$$
A) 6.6
B) 6.1
C) 7.1
D) 7.8

Question

For the following data, approximate the mean number of unused vacation days at the end of the year. $$\begin{array} { c | c } 
\text { Days } & \text { Frequency } \
\hline 1 - 2 & 2 \
3 - 4 & 21 \
5 - 6 & 20 \
7 - 8 & 10 \
9 - 10 & 30
\end{array}$$
A) 6.6
B) 6.1
C) 7.1
D) 7.8

Quizplus · Accepted Answer

To approximate the mean, calculate the midpoint for each interval, multiply by the frequency, sum these products, and divide by the total frequency. The calculation is: (1.5*2 + 3.5*21 + 5.5*20 + 7.5*10 + 9.5*30) / (2+21+20+10+30) = 6.6.

For the Following Data, Approximate the Mean Number of Unused