Find the probability.Two 6-sided dice are rolled. What is the probability the sum of the two numbers on the die will be 3?
A. 
B. 
C. 
D. 2
Answer: C
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Simplify the expression.
A. 16
B. 
C. 960
D. 
Solve the problem.The following data represents the height (in inches) and weight (in pounds) of 9 randomly selected adults. 
Graph the data on a scattergram treating height as the independent variable. Find an equation of the line containing the points (62, 126) and (70, 181). Graph the line on the scattergram. Interpret the slope of the line. Use the line to predict the weight of a person who is 72.2 inches tall. Round to the nearest pound.
What will be an ideal response?
Solve the problem.Two vertical poles of lengths 20 feet and 32 feet are situated on level ground 50 feet apart, as shown in the figure below. A piece of wire is to be strung from the top of the 20-ft pole, to a stake in the ground, to the top of the 32-ft pole. At what distance from the 20-foot pole should the stake be located to minimize the amount of wire used? Round your answer to the nearest tenth of a foot.20 ft
32 ft? 50 ft
A. 15.5 ft B. 19.5 ft C. 17.2 ft D. 23.3 ft
Use Bayes' rule to find the indicated probability.Two stores sell a certain MP3 players. Store A has 34% of the sales, 5% of which are of defective items, and store B has 66% of the sales, 1% of which are of defective items. The difference in defective rates is due to different levels of pre-sale checking of the product. A person receives a defective item of this product as a gift. What is the probability it came from store B?
A. 0.275 B. 0.22 C. 0.5667 D. 0.7083