When the outlier(s) are removed, how does the mean change? dot plot with 1 dot over 18, 2 dots over 34, 3 dots over 38, 2 dots over 40, 3 dots over 44, 2 dots over 46, and 2 dots over 48

The mean decreases by 2.1.
The mean increases by 1.6.
The mean increases by 2.1.
There are no outliers.

please explain

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

What function has a range {yly< 5}? question on picture above^

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.