AP Statistics Chapter

What is it called when both sides of data are approximately the same when folded down the middle?

• Symmetrical

• Asymmetrical

• Skewed

• Random

What type of distribution is bell-shaped and occurs a lot in real life?

• Normal distribution

• Uniform distribution

• Exponential distribution

• Poisson distribution

What type of distribution has one side longer than the other?

• The type of distribution that has one side longer than the other is called a skewed distribution.

• A normal distribution has one side longer than the other.

• A uniform distribution has one side longer than the other.

• A bimodal distribution has one side longer than the other.

What is a fixed value about a population, typically unknown, called?

• parameter

• sample statistic

• random variable

• data point

What is a value calculated from a sample that is used to estimate the parameter called?

• A statistic.

• A parameter.

• A variable.

• A constant.

What is the middle of the data; 50th percentile called?

• median

• mean

• mode

• range

What is the average called?

• Mean

• Median

• Mode

• Range

What is the observation that occurs the most often called?

• mode

• mean

• median

• range

What is it called when a statistic is not affected by outliers?

• Resistant

• Sensitive

• Variable

• Skewed

What describes how spread out the data is?

• Variability

• Mean

• Median

• Mode