A researcher at a company plans to run some trials and wants to randomly select 763 people from the general population. The researcher wants to know the probability that the percentage of smokers in their selection is at least 25%. Assume that the percentage of smokers in the general population is 30%. Use a BSM to find this probability.

step-by-step explanation:

2,160 π

step-by-step explanation:

the height of the surface increases from the center out to the sides of the road

it is c!

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.