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What is Normal Distribution Probability Solutions about?

The document provides solutions to a student worksheet on the normal distribution, detailing calculations for probabilities involving a normally distributed variable with a mean of 30 and a standard deviation of 4. It includes step-by-step computations for P(x < 40), P(x > 21), and P(30 < x < 35), with Z-score calculations and area extraction from the Z-table. The final probabilities calculated are P(x < 40) = 0.9938, P(x > 21) = 0.9878, and P(30 < x < 35) = 0.3944.

Author

lettygrant17

Language

EN