Question

Solution Given that mean = u = 4.35 noiem and o= 0.59 mrem to move The probability that a peuson an Such a fight will be expected that 5.0 merem Cosmic eladiation is P(x) 5.0) = 1- P(x45) 5-4,35 0.59 - 1-P [x-u =1-P[2 <0.es = 1-PCZC 1.101] = 1-0-8645 P(x) 5) 0.1355 | P(x) 5) = 0.1355

The amount of cosmic radiation to which a person is exposed while flying by jet across the United States is a random variable having a normal (Gaussian) distribution with average u = 4.35 mrem and o = 0.59 mrem of radiation. Find the probabilities that a person on such a flight will be exposed to 

a. more than 5 mrem of cosmic radiation 

b. between 3 and 4 mrem of cosmic radiation

Answer 1

Answer 2

Answer 3

Solution Given that mean = u = 4.35 noiem and o= 0.59 mrem to move The probability that a peuson an Such a fight will be expected that 5.0 merem Cosmic eladiation is P(x) 5.0) = 1- P(x45) 5-4,35 0.59 - 1-P [x-u =1-P[2 <0.es = 1-PCZC 1.101] = 1-0-8645 P(x) 5) 0.1355 | P(x) 5) = 0.1355

b) The probabilities that a peuson on such a flight will be exposed to anywhere from 3 to 4 meum of Cosmic radiation is P( 32*24)=P [34 35 <x=4546459 =P[ -1.35 CZ < -0.35 0:59 0:59 =P(-2.288 <2<-0.593] P[25-00593) - P(Z <-2-288) 0.2765 -0.ollo 0.2655 -. , P (3<x<4) = 0.2655

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Answer 4

Hence, in this way this question can be easily approached.