1.3-1.4

Symmetry- a distribution is (roughly) symmetric where the right and left sides almost mirror each other (Bell Curve)

Skewed to right- Bulk of Data is to the left (Data is longer to right)

Skewed to left- Bulk of Data is to the right (Data is longer to the left)

Describing overall pattern

• Shape

  • Symmetry and Skewness

• Centers

  • Mean (Average), Median (Middle), Mode (Occurs the most)

• Variability

  • Spread (Range, Deviation)

Outliers- Piece of data that stands out from the overall pattern

Stem plot- Shows data values separated into 2 parts, Stem and Leaf

• Stem

  • Everything but the final digit

  • Written from Least to Greatest

• Leaf

  • The final digit

  • Written from Least to Greatest from the appropriate stem