?Determine whether the table represents a probability distribution.
?
x 0 1 2 3 P(x) 0.10 0.45 0.30 0.15
?
A. ?yes
B. ?no
Answer: A
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Solve the problem.A bank teller has some five-dollar bills and some twenty-dollar bills. The teller has 10 more of the twenties. The total value of the money is $800. Find the number of five-dollar bills that the teller has.
A. 14 five-dollar bills B. 34 five-dollar bills C. 44 five-dollar bills D. 24 five-dollar bills
Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.In a recent survey of 48 people, 24 said that their favorite color of car was black. What percent of the people surveyed liked black cars?
A. 2% B. 50% C. 51% D. 3%
Solve the problem.How many different amounts of money can you pay if you use four coins including quarters, nickels, and dimes?
A. 13 B. 14 C. 15 D. 12
Solve and check.x2 = 25
A. -5, 5 B. -5 C. 5 D. -5, 0, 5