If a gambler rolls two dice and gets a sum of 10, he wins S10, and if he gets a sum of three, he wins $20. The cost to play the game is S5. What is the expectation of this game? A) $3.06 B) -$2.78 C)...

Extracted text: If a gambler rolls two dice and gets a sum of 10, he wins S10, and if he gets a sum of three, he wins $20. The cost to play the game is S5. What is the expectation of this game? A) $3.06 B) -$2.78 C) -$3.06 D) $2.78


Extracted text: A coin is tossed five times. Find the probability of getting exactly three heads. A) 0.3750 B) 0.1563 C) 0.2500 D) 0.3125