Question

Costumers appear at the counter of a PVR theatre at a rate of 120 per hour. Find the probability that during a given minute

(a)No customer appears
(b)Only one costumer appears
(c)at least one costumer appears
(d)between one and three customers appear (inclusive)
(e)at most 2 customers appear

Answer 1

sorry I'm awful at probablitity

Answer 2

...and spelling too apparently :P

Answer 3

120/60 = 2 per minute

Answer 4

the distribution is uniform that I can tell; so its just a rectangle graph

Answer 5

well this is not uniform apparently, if in a given minute, no one comes in, the even probably at a given minite 5 people may enter... u never know, we just have to find the likeliness of the event that no one will come at a given minute... which i don't know how... :/ isn't this something we can apply combinations?

Answer 6

the question doesnt state "at an average rate" or any other indication that this is a mean value.

Answer 7

therefore I read it as a constant uniform rate

Answer 8

otherwise it prolly goes in poisson distributions and I got no clue on those

Answer 9

i believe we can make room for assumptions... ?

Answer 10

last question http://www.cramster.com/algebra-practice-problems-p25-1-3-0-0-0-0-3-cpi2-1.aspx

Answer 11

look at the difficulty they claim the question has...

Answer 12

lol, its easy if you know what to do i spose :)

http://www.wolframalpha.com/input/?i=poisson+distribution

but i got no clue on what to do :/

Answer 13

thanks anyways :)

Answer 14

i got a textbook in the car, but once the sun goes down its hard to read ...

Answer 15

lol

Answer 16

I need an answer for this question