AP Statistics Unit 6 Vocabulary

If the mean and median of a distribution are equal, what does this tell us about the shape?

• Symmetric

• Unimodal

• Skewed Right

• Skewed Left

Which of the following is not a part of the describing/comparing distribution process?

• Spread

• Center

• Shape

• Units

What do we call a numerical summary of sample data?

• Quartile

• Statistic

• Parameter

• Percentile

Which of the following is a specification of the normal distribution?

• Skewed Right

• Bimodal

• Symmetric

• Small Range

What does this symbol represent?

• population proportion

• parameter

• sample proportion

• population sample

If we are looking at a boxplot and notice that the distribution is skewed right, what measure of center should we use?

• Mean

• Mode

• Median

• IQR

To test a claim about a mean, when the population standard deviation is unknown we use:

• z procedures

• Pythagorean Theorem

• t procedures

• np > 10 and n(1-p) > 10

Margin of error equals:

• Critical Value ∗ standard Error

• z*

• 1.96

• Standard Error

What do we use to estimate unknown parameters?

• Hypothesis Test

• Confidence Interval

• Trig Identity

• Guess and check

When p-value is greater than alpha we:

• Accept Ho

• Accept Ha

• Fail to reject Ho

• Reject Ho