Solve the problem.In a survey about the number of siblings of college students, the following probability table was constructed: 
What is the probability that a student 3 or more siblings?
A. 0.77
B. 0.23
C. 0.13
D. 0.1
Answer: B
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Find the largest open interval where the function is changing as requested.Increasing f(x) = 
x2 - 
x
A. (-?, -1) B. (1, ?) C. (-1, 1) D. (-?, ?)
Solve the problem.If the probability that an identified hurricane will make a direct hit on a certain stretch of beach is 0.25, what are the odds against a direct hit?
A. 3 to 1 B. 2 to 1 C. 1 to 4 D. 4 to 1
Solve the problem.At Bargain Car Rental, the cost of renting an economy car for one day is $19.95 plus 20 cents per mile. At Best Deal Car Rental, the cost of renting a similar car for one day is $24.95 plus 15 cents per mile. Solve the inequality 24.95 + 0.15x < 19.95 + 0.20x to find the range of miles driven such that Best Deal is a better deal than Bargain.
Fill in the blank(s) with the appropriate word(s).
Solve the equation and express the solution in exact form.log8 x = 
A. {0, 1} B. {8} C. {1, 8} D. {0, 8}