In December 2024
Answer to Question #350225 in Statistics and Probability for frwan
The average number of calories in a 1.5-ounce chocolate bar is 217. Suppose that the distribution of calories is approximately normal with standard deviation is 9. Find the probability that a randomly selected chocolate bar will have more than 190.
"P(X>190)=P(Z>\\frac{190-217}{9})=P(Z>-3)=P(Z<3)=0.9987."
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