A study randomly selected 100 samples, each of which consisted of 100 people, and recorded the number of left-handed people, X. The table below shows the probability distribution of the data. Find the mean and the standard deviation of the probability distribution using Excel. Round the mean and standard deviation to two decimal places. x P(x) 1 0.01 2 0.01 3 0.04 4 0.02 5 0.02 6 0.09 7 0.08 8 0.04 9 0.07 10 0.02 11 0.04 12 0.04 13 0.16 14 0.08 15 0.08 16 0.02 17 0.02 18 0.08 19 0.04 20 0.04

Awater tank holds 18000 gallons. how long will it take for the water level to reach 6000 gallons if the water is used at anaverage rate of 450 gallons per day

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry. how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.

What is the equivalent fraction for the following fraction using 5 as the multiplier? 1/2