A fair con is tossed 80 times in an experiment. If the coin is fair, what would be a reasonable number of times tails should appear based on your knowledge of the theoretical probability of this event?

40 would be a reasonable number of times tails should appear if the coin is fair. Fair means 50/50 chance.

So, divide 80 by 2. 80/2 = 40.

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

113.42

i hope that is right.

step-by-step explanation: