standard_description: Use the mean and standard deviation of a data set to fit it to a normal distribution and to estimate population percentages. Recognize that there are data sets for which such a procedure is not appropriate. Use calculators, spreadsheets, and tables to estimate areas under the normal curve.
problem_activity: Task
Compare each pair of numbers. Write your comparison using $\lt, =,$ or $\gt$ and in words. Explain your answer with a picture.
99 and 100
154 and 231
453 and 428
351 and 354


aligns: no