Height and the z distribution, question 1: Elena,a 15year-old girl, is 58 inches tall. The Centers for Disease Control (CDC) indicate that the average height for girls at this age is 63.80 inches, with a standard deviation of 2.66 inches
- Calculate Elenas z-score
- What percentage of his are taller?
- What percentage off girls are shorter?
- How much would Elena have to grow to be perfectly average?
- If Sarah is in the 75th percentile for height at age 15, how tall is she?
- How much would Elena have to grow in order to. Be at the 75th percentile with Sarah?