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The mass of an object is normally distributed with a mean of μ = 3480 grams...

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Statistics

The mass of an object is normally distributed with a mean of μ =3480 grams and a standard deviation of σ = 550 grams. Find the 28thpercentile in this population.

a. 3161 grams

b. 2834 grams

c. 3050 grams

d. 2824 grams

Part B.) If five objects from the population are randomlyselected, what is the probability the mean mass among them is lessthan 3229 grams?

a.) 0.1539

b.) 0.4020

c.) 0.546

d.) 0.0250

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