If you roll N dice, then the probability of getting exactly 3 ones is
.
A: Find the probability of getting exactly 3 ones if you roll 19 dice. Report your answer correct to 3 decimal places.B. How many dice should you roll in order to maximize your chances of getting exactly 3 ones?C: What probability corresponds to the number(s) you found in part B? Report your answer correct to 3 decimal places.
What will be an ideal response?
A. 0.243?B. 17 or 18 dice?C. 0.245
Mathematics
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Divide and simplify. 
A. 6
B. 6
C. 
D. 2
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Draw the angle having the given radian measure.135° 
A. 
B. 
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Solve the problem.Consider the rational inequality 
< 0. Without doing any work, give the solution set. (Hint: determine the sign of the numerator and denominator.)
A. (7, ?) B. (-?, ?) C. (7, 6) D. ?
Mathematics
Solve the problem.Cory and Melissa are racing electronic cars around a circular track. They begin at the same time going in the same direction. Cory's car completes a revolution in 55 seconds, while Melissa's car completes a revolution in 50 seconds. How long will it take them before both cars reach the starting point again simultaneously?
A. 220 sec B. 1100 sec C. 550 sec D. 110 sec
Mathematics