Provide an appropriate response.If P(A ? B) = 0.2, P(A) = 0.7, P(B) = 0.8, can A and B be independent events? How can you tell?
What will be an ideal response?
No, because P(A ? B) ? P(A) ? P(B)
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Ten people are meeting at a conference. Each person is instructed to introduce herself or himself to each of the other participants at the conference. If it is estimated that each introduction should take 1.5 minutes, how much time should be allowed in the schedule for this activity?
What will be an ideal response?
Multiply.
? 
A. 15x4
B. x4
C. 
D. 
Find the expected value.A fair coin is tossed three times, and a player wins $3 if 3 tails occur, wins $2 if 2 tails occur and loses $3 if no tails occur. If one tail occurs, no one wins. What is the expected value of the games?
A. $0.75 B. $2.00 C. -$3.00 D. $3.00
Determine whether the pair of lines is parallel, perpendicular, or neither.12x + 4y = 16 6x + 2y = 10
A. Parallel B. Perpendicular C. Neither