Data Analysis, Statistics & Probability — Quiz 3

Questions in this quiz (10)

1. A survey recorded the favorite after-school activities of students. What percent of the students chose Music as their favorite activity?

   • $$25\%$$
   • $$30\%$$
   • $$37.5\%$$
   • $$50\%$$

2. A store recorded the reasons customers exchanged products. Approximately what percent of the customers exchanged products because the item was damaged?

   • $$20\%$$
   • $$30\%$$
   • $$40\%$$
   • $$50\%$$

3. A company tested the typing speeds of 80 applicants. What is the ratio of applicants who typed over 50 words per minute to those who typed 50 words per minute or less?

   • $$2:3$$
   • $$4:5$$
   • $$2:5$$
   • $$3:4$$

4. A basketball team scored 18, 25, 22, 15, and 20 points in its first five quarters. What was the mean number of points scored?

   • $$18$$
   • $$19$$
   • $$20$$
   • $$21$$

5. A coffee shop recorded the number of drinks sold during seven hours: $$18,\ 25,\ 21,\ 30,\ 27,\ 24,\ 20$$ What is the median number of drinks sold?

   • $$21$$
   • $$22$$
   • $$24$$
   • $$25$$

6. A student earned the following quiz scores: $$84,\ 91,\ 76,\ 88,\ 95,\ 79$$ What is the median quiz score?

   • $$84$$
   • $$86$$
   • $$88$$
   • $$91$$

7. Seven weather stations reported these temperatures: $$72^\circ,\ 70^\circ,\ 74^\circ,\ 72^\circ,\ 71^\circ,\ 72^\circ,\ 69^\circ$$ What is the mode of the temperatures?

   • $$70^\circ$$
   • $$71^\circ$$
   • $$72^\circ$$
   • $$74^\circ$$

8. The asking prices of six houses are: $$\$185{,}000,\ \$192{,}000,\ \$178{,}000,\ \$201{,}000,\ \$194{,}000,\ \$190{,}000$$ What is the mean asking price?

   • $$\$188{,}000$$
   • $$\$190{,}000$$
   • $$\$190{,}667$$
   • $$\$192{,}500$$

9. The selling prices of seven homes are: $$\$210{,}000,\ \$198{,}000,\ \$205{,}000,\ \$215{,}000,\ \$202{,}000,\ \$208{,}000,\ \$220{,}000$$ What is the median selling price?

   • $$\$202{,}000$$
   • $$\$205{,}000$$
   • $$\$208{,}000$$
   • $$\$210{,}000$$

10. The numbers of visitors at four museums were: $$540,\ 625,\ 710,\text{ and }525$$ Which expression correctly finds the mean number of visitors?

    • $$\frac{540+625+710+525}{4}$$
    • $$540+625+710+525$$
    • $$\frac{625+710}{2}$$
    • $$(540+625+710+525)\div2$$