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
Answer: A
You might also like to view...
Gastric juice has a hydrogen ion concentration of 0.13 mol/L. What is the pH of gastric juice?
A. 0.89 B. 0.13 C. 1.35 D. 4.69 × 10-14
Restate in a logically equivalent form.It is not true that both this book is interesting and the book is about stars.
A. This book cannot be both interesting and about stars. B. Either this book is not interesting or it is not about stars. C. This book is both interesting and about stars. D. Either this book is interesting or it is about stars.
Solve the polynomial inequality and graph the solution set on a number line. Express the solution set in interval notation.(x - 5)(x + 6) > 0
A. (-?, -6) ? (5, ?)
B. (-6, ?)
C. (-?, -5) ? (6, ?)
D. (-6, 5) 
Factor the trinomial completely.-49x2 - 14x + 15
A. -(7x - 5)(7x + 3) B. -(7x + 5)(7x - 3) C. -(7x - 5)(7x - 3) D. (7x + 5)(7x + 3)