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. 900 = 466.2= The mean is
2. 35 = -398.8= 159,041.4The median is
3. 500 = 66.2= The variance is 99,667.2
4. 300 = -133.8= The standard deviation is

Σ X = _
X = _
Σ (X - X)2 = 398,668.6
n =

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

A25- foot ladder leans against a building and reaches a point of 23.5 feet above the ground .find the angle that the ladder makes with the building