The shape of distributions

Open Ended

Why is it important to understand the shape of data distributions when analyzing data?

Open Ended

Which three dot plots go together based on their distribution shapes? Why do you think they belong together?

Multiple Choice

Which three dot plots have a similar distribution shape? Do you agree or disagree with the grouping?

• A, B, C

• A, C, D

• B, C, D

• A, B, D

Multiple Choice

What is the main difference between a bell-shaped distribution and a bimodal distribution?

• A bell-shaped distribution has one peak, while a bimodal distribution has two peaks.

• A bell-shaped distribution is always symmetric, while a bimodal distribution is always skewed.

• A bell-shaped distribution has evenly spread data, while a bimodal distribution has clustered data.

• A bell-shaped distribution has no peaks, while a bimodal distribution has one peak.

Multiple Choice

Which of the following distributions is symmetric about its center?

• Bell-shaped distribution

• Bimodal distribution

• Skewed distribution

• Uniform distribution

Open Ended

Describe how you can identify a skewed distribution by looking at a dot plot.