Understanding Data Distributions

What is the term used to describe the overall shape of a graph?

• Data point

• Data distribution

• Data line

• Data cluster

What is the shape of a distribution where all bars of a histogram are about the same height?

• Skewed left

• Skewed right

• Uniform

• Bimodal

In a normal distribution, what percentage of data falls within one standard deviation of the mean?

• 50%

• 68%

• 95%

• 99.7%

Which gender has a smaller standard deviation in height according to the data?

• Males

• Both have the same

• Females

• Cannot be determined

What is the mean height of American males in the given data?

• 64 inches

• 68 inches

• 72 inches

• 70 inches

What does a skewed right distribution indicate about the data?

• Data is evenly distributed

• Data is clustered on the left

• Data is clustered on the right

• Data is symmetrical

What is the significance of the tail in a skewed distribution?

• It represents the median

• It is irrelevant

• It shows the mean value

• It indicates the direction of skewness

When is the median preferred over the mean as a measure of center?

• When data is uniform

• When data is skewed

• When data is symmetrical

• When data is normal

Which measure of spread is used when the data distribution is skewed?

• Standard deviation

• Five number summary

• Range

• Variance

How many intervals are suggested for creating a histogram of snowfall data?

• Six

• Five

• Four

• Seven