Hw4_skeleton

3.4

• 1. The Z score
• 2. The Kth Percentile
• 3. Quartiles
• 4. Interquartile
• 5. 34 week gestation: -0.30303, 40 week gestation: -0.42553. The 40 week gestation baby weighs less relative to to the time in gestation.
• 6. 34 week gestation: 0.6060, 40 week gestation: 0.8510. The 34 week gestation baby weighs less.
• 7. with the man at a Z-score of 1.8 and the woman at a Z-score of 1.5, the man is taller.
• 8. with the man at Z-score of -0.08 and the women with a Z-score of -0.55, the woman is taller.

1. 5% of males weigh less than or equal to 12kg at 36 months of age, and 95% weigh more than 12kg at 36 monthes of age.

2. 95% of of newborn females measure equal or less than 53.8cm, and 5% measure longer than 53.8cm.

1. 25% of the states have 252.4 violent crimes or less per per population of 100,000, 50% of the states have a crime rate of 333.8 or less per population of 100,000, and 75% have a crime rate of 474.5 or less per population of 100,000.

2. 30.5

3. Yes, this would be an outlier.

4. It would be skewed right because the placement of the median.

3.5

• 1. Minimum, first quartile, second qaurtile, third qaurtile, maximum.
• 2. Skewed Right

1. Skewed Right

2. 0, 1, 3, 6, 16

1. Symmetric

2. -1, 2, 5, 8, 11

1. 40

2. 52

3. y, because the boxes and the whiskers cover greater area.

4. symmetric, the distance between the first quartile and the second quartile, and the disctance between the second quartile and the third quartile are very nearly equivelant, as are the two whiskers.

5. Skewed Right, the median falls towards the the left, and the right whisker is much longer than the left.

1. 16

2. 21

3. y, because the whiskers are longer and the boxes take up greater area.

4. yes, 29.

5. Skewed Left, the median fall to the right, and the left whisker is longer than the right.

data <- c(.608,.608,.608,.610,.612,
          .601,.610,.608,.607,.598,
          .606,.610,.605,.611,.600,
          .602,.607,.609,.608,.605,
          .611,.600,.605,.610,.603)

boxplot(data,horizontal = T)

2. The distribution is skewed left because there is a greater difference between the first and second quartile than the second and third quartile, and the left whisker is far longer than the right.