We are interested in knowing if the following frequency distribution is normally distributed. The population mean and standard deviation of the data are 600 and 160, respectively. If the distribution was normally distributed, what is the probability that an observation would be a member of the "400 up to 600" class?

Question

We are interested in knowing if the following frequency distribution is normally distributed. The population mean and standard deviation of the data are 600 and 160, respectively.  If the distribution was normally distributed, what is the probability that an observation would be a member of the "400 up to 600" class?

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The Answer of We are interested in knowing if the following frequency distribution is normally distributed. The population mean and standard deviation of the data are 600 and 160, respectively.  If the distribution was normally distributed, what is the probability that an observation would be a member of the "400 up to 600" class?

We Are Interested in Knowing If the Following Frequency Distribution