Data Analysis — Test Answers

The frequency table shows the results of a survey comparing the number of beach towels sold for full price and at a discount during each of the three summer months. Beach Towel Sales Full Price Discounted Total Month 1 49 1 50 Month 2 120 5 125 Month 3 101 24 125 Total 270 30 300 The store owner converts the frequency table to a conditional relative frequency table by row. Beach Towel Sales Full Price Discounted Total Month 1 0 point 9 8 0 point 0 2 1 point 0 Month 2 0 point 9 6 0 point 0 4 1 point 0 Month 3 0 point 8 0 8 0 point 1 9 2 1 point 0 Total cap x cap y 1 point 0 Which value should he use for cap x ? Round to the nearest hundredth.

Nico wanted to determine the number of students in his school who buy school lunch. He walked around the cafeteria one lunch period looking to see whether every fifth person in the cafeteria purchased lunch or brought their own. Which method did he use to collect his data?

The data set represents the total number of tickets each person purchased for a play. 0 comma 0 comma 1 comma 1 comma 1 comma 2 comma 2 comma 2 comma 4 comma 4 What is the median of the data?

What is the standard deviation of the data?