Assume that when adults with smartphones are randomly selected, 57% use them in meetings or classes. If 20 adult smartphone users are randomly selected, find the probability that exactly 14 of them use their smartphones in meetings or classes.
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The probability is
(Round to four decimal places as needed.)

Explain how you might determine the rate of weathering on a sample rock

Iqualified for the horatio alger scholarship. it is awarded based on financial need, but students must have a 2.0 gpa to apply. to qualify, students must pursue a degree at a four-year college.

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.