Interpreting Data Question 9

calculator allowed The number of people who went to a certain store each day of the week is shown in the table below.

\begin{array}{|l|c|} \hline \hspace{2em} \text{Day} & \text{Number of customers} \\ \hline \text{ Monday} & 113 \\ \hline \text{ Tuesday} & 93 \\ \hline \text{ Wednesday} & 85 \\ \hline \text{ Thursday} & 90 \\ \hline \text{ Friday} & 67 \\ \hline \text{ Saturday} & 132 \\ \hline \text{ Sunday} & 55 \\ \hline \end{array}

Which of the following is true based on these data?

The store had the most customers on Monday.

Each day from Monday through Friday, the number of customers in the store was lower than the previous day.

The two days with the lowest number of customers were Friday and Sunday.

The number of customers in the store on Wednesday and Thursday combined is more than the number of customers in the store on Friday and Saturday combined.

Approach

Rather than risking a careless mistake, we should confirm that three choices are incorrect.

The store had most of its customers on Saturday.

From Monday to Friday, the number of customers increased from Wednesday to Thursday.

The number of customers on Wednesday and Thursday combined is $85+90=175$ . The number of customers on Friday and Saturday combined is $67+132=199$ .