math

Edit Answers
1234567
Across
  1. 3. A contestant receives $4 if a coin turns up heads and pays $3 if it turns up tails. What is the expected value?
  2. 5. If  = 85 and . then the z-score for a raw score of 92 is?
  3. 6. Compute the standard deviation of the numbers 8, 18, 7, and 10.
  4. 7. A golfer is at the 75th percentile in a field of 68. What is her rank?
Down
  1. 1. A contestant tosses a coin and receives $5 if heads appears and $1 if tails appears. What is the expected value of a trail?
  2. 2. A golfer is ranked 22nd in a field of 114 players. What is his percentile?
  3. 4. Find the population standard deviation of the scores 8, 10, 19, 23, 28, 31, 32 and 41.
  4. 5. A tray of electronic components contains nine good components and three defective components. If two components are selected at random, what is the expected number of defective components?