Caffeine content in a 5-ounce cup of brewed coffee ranges from 60 to 180 mg, depending on brew time, coffee bean type, and grind. (a) use the midrange to estimate the measure of centre. midrange 120 (b) use the empirical rule to estimate the standard deviation. standard deviation 20 (c) why is the assumption of a normal, bell-shaped distribution important in making these estimates. especially question d

Afarmer began a new method of reducing grain spills. this reduced the number of mice on the farm. the number of snakes in the surrounding area decreased at the same time. the snakes depended on the mice that lived in the field. what’s the likely reason the snake population decreased? a. the number of snake predators increased. b. the number of mice increased. c. the number of mice decreased. d. the pesticides affected the snakes. e. a new breed of mice moved into the field.

A24-n net force acts on a 8-kg rock.what is the acceleration of the rock?

Aplan that covers all qualified higer education expenses is known as a