A company sells apples in packages of 4. The masses of the individual apples are normally distributed with a mean of 175 g and a standard deviation of 15 g. Assume that the weights of apples are independent from
each other.
Let T = the total weight of 4 randomly selected apples.
Find the probability that the total mass is less than 685 g

The correct option is 4. The domain of the function are all real numbers greater than or equal to –3.

Step-by-step explanation:

Domain is the set of all possible inputs or x-values, for which the given function is defined.

The given graph is defined form -3 to positive infinity. The point -3 included in the set of input because there is a closed circle at x=-3.

So, domain of the function are all real numbers greater than or equal to –3.

Therefore the correct option is 4.