Suppose it is now 1:00 p. m. and the last ghost appearance (the 6th overall) was at 12:35 p. m. What is the probability that the 7th ghost will appear before 1:30 p. m., to the nearest three decimal places

probability = 0.503

Step-by-step explanation:

given data

now = 1:00 p.m

last ghost appearance = 12:35 p.m

solution

we consider here Ghost appearances occur in house according to a Poisson process having a rate =  1.4 ghosts per hour

so time duration from 1:00 pm to 1:30 pm = 0.30 min = 0.5 hrs

and we take random variable denoting inter-arrival time  = Y

so here probability that the 7th ghost will appear before 1:30 p.m.  is as

probability = P(Y < 0.5)

probability = 1 -

probability  = 1 - 0.497

probability = 0.503

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.

answer: 0.26

i used the calculator on google