Find the indicated probability.The following contingency table provides a joint frequency distribution for a group of retired people by career and age at retirement. Age at Retirement Suppose one of these people is selected at random. Compute the probability that the person either 

A. 0.507
B. 0.253
C. 0.064
D. 0.443


Answer: D

Mathematics

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Find the probability.A card is drawn from a 52-card deck. What is the probability of drawing an ace or a 9?

A.  
B.
C. 10
D.  

Mathematics

Solve the problem.Write an equation for the tangent line to the curve    at the point  

A.  +  = 
B.  +  = 1
C.  +  = 
D.  +  = 1

Mathematics

Find the sum or difference.-34.25 - 160.33

A. 194.58 B. -194.58 C. 128.33 D. 126.08

Mathematics

 Find all values of ? in [0°, 360°) that satisfy the equation.2 sin 2? -  = 0

A. {30°, 60°, 210°, 240°} B. {30°, 150°, 210°, 330°} C. {60°, 120°, 240°, 300°} D. {60°, 150°, 240°, 300°}

Mathematics