Find the sample standard deviation and the population standard deviation of the data set. 41, 32, 36, 53, 36, 40, 37, 58, 55, 69, 39, 52, 68, 48, 44
Please help !!

Five dinosaurs go for a walk and come across some lovely chicken wings. their names are rexy, bronto, steggy, paly, and terry. there are exactly 5 dozen wings(equal enough for each dino to have a dozen right? ); however, terry is on a diet and he only eats 6 wings. if paly eats 2 more than terry, steggy eats 4 more than paly, and bronto and rexy eat the same amount because they are really hungry from not eating all day, how many chicken wings did each dino eat?

The scale for a map is 20 miles = 1/2 inch. the distance between two towns on the map is 3 3/4 inches. what is the actual distance between these towns? 150 miles 38 miles 75 miles 135 miles

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles