3.4

5- 0,3; 0,43 .The 40 week gestation baby weights less than the 34 weeks.

7-the man is relatively taller.

9- Felix Hernandes had a better year, because his ERA was 2.14 standars deviation, while Johnson’s was 1,8 standards deviation below the Nationals League ERA.

11- Power had a more convincing victory, because his finishing time was 1,76 standard deviation below the mean, while Franchittis was 1,48.

13- 239

15- a- Means that 15 percent of of males 3-5 months have head circunference that is 41 cm or less; and that 85% is more than 41 cm.

b-Means that 90% of two year old females have a wait circumference of 52.7 cm or less. And 10% has more than 52.7 cm.

c- It can be concluded that as the age increase, the height in each percentile decrease, so men are getting heigher.

3.5

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

4- Bell-shaaped b- -0,5, 2, 5, 8,11

5- a-40 b-52 c- y, because the distance between the Mnin and the maximum is bigger than the same distance in X. d- I would say it is symetric, because the distance from the M to the max and min is very similar. e- I would say it is skewed right, because the distance between the M and Max is much bigger than the M to Min.

6- a-16 b-22 c-I would say y is more disperse, because the distance between the Min to the Max is bigger. d-Yes, the value is around 29. e- it is skewed left, because the distance from the M to Min is much bigger than from the M to Max.

7-

your_data <- c(60, 63, 68, 68, 68,
               75, 75, 77, 79, 89, 
               89, 89, 93, 94, 98)
             
boxplot(your_data, horizontal = T)

fivenum(your_data)
## [1] 60 68 77 89 98

8-

this_data <- c(110, 125, 140, 140,140,
               150, 152, 157, 160, 173, 
               173, 173, 180, 180,205)
             
boxplot(this_data, horizontal = T)

fivenum(this_data)
## [1] 110 140 157 173 205

9-

9

my_data <- c(42, 43, 46, 46, 47,
             47, 48, 49, 49, 50,
             50, 51, 51, 51, 51,
             52, 52, 54, 54, 54,
             54, 54, 55, 55, 55,
             55, 56, 56, 56, 57,
             57, 57, 57, 58, 60,
             61, 61, 61, 62, 64,
             64, 65, 68, 69)

fivenum(my_data)
## [1] 42.0 50.5 54.5 57.5 69.0
boxplot(my_data, horizontal = T)

c- The shape is symetric.

10-

our_data <- c(7.2, 7.8, 7.8, 7.9, 8.1, 8.3,
              8.5, 8.6, 8.6, 8.6, 8.7, 8.8,
              9.0, 9.1, 9.2, 9.2, 9.2, 9.4,
              9.4, 9.6, 9.7, 9.7, 9.9, 9.9,
              10.0, 10.0, 10.0, 10.1, 10.2,10.3,
              10.3, 10.3, 10.3, 10.7, 10.7, 10.9,
              11.2, 11.2, 11.2, 11.3, 11.3, 11.3,
              11.5, 11.5, 11.7, 12.4, 12.5, 13.6,
              13.8, 14.4, 16.4)


fivenum(our_data)
## [1]  7.20  9.05 10.00 11.20 16.40
boxplot(our_data, horizontal = T)

c- The shape is skewed right.