The weights of 4-year-old male children are normally distributed. Sam, a 4-year-old boy, has a Z-score of -1.1. Which of the following is true?
Sam's weight is below average.
Roughly 13.57% of Sam's peers weigh more than Sam.
Sam's weight is average.
Roughly 13.57% of Sam's peers have weights less than or equal to Sam's weight.
The heights of 5-year-old male children are normally distributed. Marcus, a 5-year-old boy, has a Z-score of 0. Which of the following is true?
Marcus is shorter than average.
Marcus is taller than roughly 50 percent of his peers.