For the Past 50 Days,daily Sales of Laundry Detergent in a Large

Essay

For the past 50 days,daily sales of laundry detergent in a large grocery store have been recorded (to the nearest 10).
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$$\begin{array} { c c } \text { Units Sold } & \text { Number of Times } \\\hline 30 & 8 \\40 & 12 \\50 & 15 \\60 & 10 \\70 & 5\end{array}$$ a. Determine the relative frequency for each number of units sold.
b. Suppose that the following random numbers were obtained using Excel:
$\begin{array} { l l l l l l l l l l } .12 & .96 & .53 & .80 & .95 & .10 & .40 & .45 & .77 & .29 \end{array}$
Use these random numbers to simulate 10 days of sales.