Question

A television program reported that the U.S. (annual)birth rate is about 18 per 1,000 people, and the death rate is about 9 per 1,000 people.

(b) In a community of 1000 people, what is the (annual) probability of 9 births? What is the probability of 9 deaths? What is the probability of 18 births? 13 deaths? (Round your answers to four decimal places.) P(9 births) P(9 deaths) 0.009 P(18 births) - 0018 P(18 deaths) X X (c) Repeat part (b) for a community of 1500 people. You will need to use a calculator to compute P(9 births) and P(18 births). (Round your answers to four decimal places.) P(9 births)- P(9 deaths) P(18 births) - P(18 deaths)- (d) Repeat part (b) for a community of 750 people. (Round your answers to four decimal places.) P(9 births) P(9 deaths)- P18 births)- P(18 deaths)- Read It Need Help? 1125 AM 11/10/2019

Answer 1

☺ birth rate : tb= 18 per 1000 people PLX=k) = e-do los es 18k K K death rate: td=9 per 1000 people P(x=x) = erite de ** P(9 births) = elle? -0.00832 **Pl 9 deaths) - epg = 0.131755 1 ~[0.1316 ** P(18 births) - 2-18 içi8 **P( 18 births) = -118. — = 0.09359 = 0.0936] ** P(18 deaths) = e 118 = 0.002893 ~0.00291

@ birth rate : /b = 18 per 1000 people = 27 per 1500 people P(x=k) = 6 - 27 27k death rate: 2d=9 per 1000 people B = 13.5 per 1500 people P(x=k), e-13.5 13.5k = 0.056268 * * P 27 218 ** Pl9 births) – en 27' = 0.000039 210.0000] e-13.5 13.59 ** P ( 9 deaths) = sig" = 0.056268 10.0563] ** P(18 births) = =[0.0171] ** P( 18 deaths) - e - 13.5 13.518 . 118 ~ 10.0475 e-27 = 0.017070 118 ·0171 - = 0.047499

@ birth rate: to = 18 per 1000 person = 13.5 per 750 person PCX=k) - 8-13.5 13.5k Tk death rate: ld = g per 1000 person = 6.75 per 750 person Plx=k) - 8-6.75 6.75 K ** Plg births) = e e-13.5 13.53 -=0.056268 19 x 10.0563] ** Pl 9 death) = -5.75 6.759 = 0.093860 19 ** = 0.047499 a 10.0939] P(18 births) = L e-13.5 13.518 e 118 20.0475 e-6.75 6.75 ** P ( 18 deaths) = 0.000154 ~ 10.0002