5. -.30; -0.43;the 40 week gestation baby weighs less relative to the gestation period

7. the man is relatively taller

9. Felix hernandez had the better year. his ERA was 2.14 standard deviation below the American League mean ERA. Johnsons ERA was 1.78 standard deviation below the National League’s mean ERA

11. *Will Power had the more convincing story. his finishing time was 1.76 standard deviation below the mean. Franchittis win was 1.48 standard deviation below the mean

13. 239

15. a. 15% of 3-5 month old males have a circumfrence of 41 cm or less. 85% of 3-5 month old males have a head circumference that is greater than 41 cm b. 90% of 2 year old females have a waist circumference that is 52.7 cm or less, and 10% of 2 year olds females have a waist circumference that is more than 52.7cm c. height decreases as age increases. adault males are getting taller

25. 574 mins

3. skewed right b. 0,1,3,6,16

5. 40 b. 52 c. y d. symmetric e. skewed right

9. 42,50.5,54.5,57.75,69 symmetric with an outlier

summary(cars)
##      speed           dist       
##  Min.   : 4.0   Min.   :  2.00  
##  1st Qu.:12.0   1st Qu.: 26.00  
##  Median :15.0   Median : 36.00  
##  Mean   :15.4   Mean   : 42.98  
##  3rd Qu.:19.0   3rd Qu.: 56.00  
##  Max.   :25.0   Max.   :120.00

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