If a trend line has a slope of -3, what is true about the data? select all that apply.

both sets of data are increasing.

one set of data is increasing, while one is decreasing.

the data is going up from left to right.

the data is going down from left to right.

An appliance salesman sets a goal to sell an average of 6 appliances per day for the first two weeks of his new job. the dot plot shows the number he sold each day during the first 13 days. what is the minimum number of appliances he must sell on the 14th day in order to reach his goal? a) 5 b) 6 c) 7 d) 8

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?