In the Meat, Poultry & Dairy case study, approximately what percentage fall within one standard deviation of the mean?

Prepare for the SASB Fundamentals of Sustainability Accounting Level II Test. Study with multiple choice questions, gaining hints and explanations. Enhance your sustainability reporting skills and ace your exam!

Multiple Choice

In the Meat, Poultry & Dairy case study, approximately what percentage fall within one standard deviation of the mean?

The empirical rule for a normal distribution is what this item tests: about 68% of values fall within one standard deviation of the mean. In many sustainability data contexts, you approximate the data as normal, so roughly two-thirds of observations lie in the range from μ − σ to μ + σ around the average. This is why about 68% of the data would be within one standard deviation. The other numbers correspond to wider ranges: about 95% within two standard deviations, and about 99.7% within three. So the best answer for the question is 68%. For a quick check, if the average score is 70 with a standard deviation of 5, roughly 68% would lie between 65 and 75.

The empirical rule for a normal distribution is what this item tests: about 68% of values fall within one standard deviation of the mean. In many sustainability data contexts, you approximate the data as normal, so roughly two-thirds of observations lie in the range from μ − σ to μ + σ around the average. This is why about 68% of the data would be within one standard deviation.

The other numbers correspond to wider ranges: about 95% within two standard deviations, and about 99.7% within three. So the best answer for the question is 68%. For a quick check, if the average score is 70 with a standard deviation of 5, roughly 68% would lie between 65 and 75.

More practice questions