An orange juice producer buys all his oranges from a large orange grove. The amount of juice squeezed from each of these oranges is approximately normally distributed, with a mean of 4.70 ounces and a...

An orange juice producer buys all his oranges from a large orange grove. The amount of
juice squeezed from each of these oranges is approximately normally distributed, with a mean
of 4.70 ounces and a standard deviation of 0.40 ounce.


c. At least how many ounces of juice will 77% of the oranges contain?