1. The mean hemoglobin level in the blood for a certain large group of individuals is 21.0 grams per millilitre. The standard deviation is 2g/ml. If the sample of 35 individuals is selected, find the probability that the mean will be greater than 21.3g/ml. Assume that the variable is normally distributed. 1. What is the probability for the question above?

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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1. The mean hemoglobin level in the blood for a certain large group of individuals is 21.0 grams per millilitre. The standard deviation is 2g/ml. If the sample of 35 individuals is selected, find the probability that the mean will be greater than 21.3g/ml. Assume that the variable is normally distributed. 1. What is the probability for the question above?

2. For a continues random variable that has a normal distribution with a mean of 20 and a standard deviation of 4, find the area under the normal curve from x= 20

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