Question
Normal probability plots for three data sets are shown at the bottom of the page. Which plot indicates that the data are approximately normally distributed?
Step 1
A normal probability plot is a graphical technique to identify substantive departures from normality. This includes identifying outliers, skewness, kurtosis, a need for transformations, and mixtures. Show more…
Show all steps
Your feedback will help us improve your experience
Sheryl Ezze and 51 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
If a data set is approximately normally distributed, its normal probability plot would be S-shaped.
The graph below shows the graphs of several normal distributions, labeled A, B, and C, on the same axis. Determine which normal distribution has the smallest standard deviation. Three normal distribution curves.
For the three probability distributions shown, rank each distribution from lowest to highest in terms of the sample size required for the distribution of the sample mean to be approximately normally distributed. Justify your choice.
Sampling Distributions
Distribution of the Sample Mean
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD