Question: Need to show work. Please help. In a normal distribution, it is known that 27.34% of all the items are included from 100 up to

Need to show work. Please help.

In a normal distribution, it is known that 27.34% of all the items are included from 100 up to the mean, and another 45.99% of all the items are included from the mean up to 145. Determine the mean and the standard deviation of the distribution.

What do these numbers tell us?

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