Review One Variable Statistics

What is the median number of hot dogs eaten by the contestants of a hot dog eating contest?

• 4

• 5

• 7

• 15

• 18

The scores of 10 students who took a final exam are listed below:

58 72 74 92 84 40 74 81 76 83

What is upper quartile (Q3) of the data set?

What age interval has exactly 4 employees?

• 10 - 19

• 20 - 29

• 30 - 39

• 40 - 49

• 50 - 59

Describe the shape of the data. Select all that apply.

• bell-shaped

• skewed left

• skewed right

• symmetric

• uniform

A variable (or response variable) is

• a characteristic of interest about each individual element of a population or sample

• a characteristic that is irrelevant to the collection of the data

• a characteristic that changes when the data is collected

• a characteristic or trait that will be ignored in a sample population

The number of accidents in a city during 2010 is

• Discrete variable

• Continuous variable

• Qualitative variable

• Constant

Describe the shape of the data. Select all that apply.

• bell-shaped

• skewed left

• skewed right

• symmetric

• uniform

Which will be greater for the graph given: the mean or the median?

• mean

• median

Which will be greater for the graph given: the mean or the median?

• mean

• median

Which will be greater for the graph given: the mean or the median?

• mean

• median