Please help . Complete the chart to find the mean, variance, and standard deviation. Remember to use commas and round numbers to the nearest tenth. X X X - X (X - X )2 1. 45 = -357.5 = The mean is 2. 340 = -62.5 = The variance is 3. 400 = -2.5 = The standard deviation is 4. 825 = 422.5 = n = Σ X = X = Σ (X - X)2 = 310,225.2

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?

Handsome jack is buying a pony made of diamonds. the price of the pony is p dollars, and jack also has to pay a 25% diamond pony tax. which of the following expressions could represent how much jack pays in total for the pony?

Astore sells 4 apples for $3 and 3 oranges for $4 if pete buys 12 apples and 12 oranges how much will it cost