Suppose the age that children learn to walk is normally distributed with mean 11 months and standard deviation 2.1 month. 33 randomly selected people were asked what age they learned to walk. Round all answers to 4 decimal places where possible. What is the probability that one randomly selected person learned to walk when the person was between 10.5 and 11.2 months old?  For the 33 people, find the probability that the average age that they learned to walk is between 10.5 and 11.2 months old.  Find the IQR for the average first time walking age for groups of 33 people. Q1 =   Q3 =   IQR:

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A: Solution

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Q: 4. On a certain standardized test, the population mean is 250 with a standard error of the mean of…

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A:

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A:

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A:

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A:

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A:

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A:

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A:

Q: In A-1. The 8th hr. Probability was cut off. I would need that answer as well. In C. The mean and…

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Q: How do I do this problem?

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Q: he lengths of pregnancies are normally distributed with a mean of 266 days and a standard deviation…

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A: It is given that the mean is 100 and standard deviation is 15.

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A:

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A: Mean()=105standard deviation()=15

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