~Which phone card is better Call MOM: 30 minutes for $2.50 or FONEPlus: 45 Minutes for $4.00

~The unit price of a T-shirt is $6.50 when purchased in a pack of 3.
A single shirt costs $8. What is the least amount of money Sandy can
spend to get 4 T-shirts?

~What is a better deal:16 bottles of orange juice for $19.99 or 40 bottles of orange juice for $32.99

~You can buy a box of 12 doughnuts for $6.99, or buy 12 single doughnuts for $0.95 each. Which is a better deal?

~A music store charges $9.50 for 11 songs, another store charges $13 for 16 songs.

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2

In 2000, for a certain region, 27.1% of incoming college freshman characterized their political views as liberal, 23.1% as moderate, and 49.8% as conservative. for this year, a random sample of 400 incoming college freshman yielded the frequency distribution for political views shown below. a. determine the mode of the data. b. decide whether it would be appropriate to use either the mean or the median as a measure of center. explain your answer. political view frequency liberal 118 moderate 98 conservative 184 a. choose the correct answer below. select all that apply. a. the mode is moderate. b. the mode is liberal. c. the mode is conservative. d. there is no mode.

Researchers are conducting experiments to determine the role of alcohol in the development of depression. after the study is complete, they determine that the relative risk of developing depression is 1.55 with a 95 % ci of 1.2 -1.9. each group is then divided into nonsmokers and smokers. the relative risk for the nonsmokers is 1.12 with a 95% ci of 0.87-1.37. the relative risk for the smokers is 1.7 with a 95 % cl of 1.5-1.9. what type of bias may affect this study? a. procedure bias b. recall bias c. selection bias d. confounding e. lead-time bias