Data DistributionInvestigation 1

1.1 Variability in Categorical Data

2 Types of Data•Categorical (Month Born, Favorite Band)•Numerical (State Populations)

Categorical Data – data that has specific labels or names for categories.

GreenIn 1 bag

TotalM & M’s

% Green Decimal %

5 54 554

0.092 9 %

1.2 Variability in Numerical Counts

Numerical Data – Data that has specific counts or measures.

Trend - To have a general direction or tendency.

1.3 Variability in Numerical Measurements

Minimum Smallest quantity Maximum Greatest quantityOutlier Unusually high or low data values in a distribution.Clusters Sections of data that are close together.Holes Gaps in data values in a distribution.

1.4 Two Kinds of Variability

The ordered value bar graph shows the data in order from minimum to maximum values.

The line plots shows the frequency of each measurement.