On average there are four traffic accidents in a city during one hour of rush-hour traffic. Use
an appropriate distribution to calculate the probability that in one such hour there are

(a) No accidents
(b) At least 6 accidents

Question

On average there are four traffic accidents in a city during one hour of rush-hour traffic. Use
an appropriate distribution to calculate the probability that in one such hour there are

(a) No accidents
(b) At least 6 accidents

amistre64 · Answer

what would be the appropriate distribution?  normal, poisson, geometric, Fdist, etc ...

anonymous · Answer

Normal

amistre64 · Answer

ok, and would our mean be 4 and our standard distribution be 1 ?  or is there some other way to find thoe?

anonymous · Answer

I guess so if that's the literal meaning that the question states. I don't really see another way so yeah

amistre64 · Answer

"i guess" doesnt fill me with confidence :)  trying to interpret the wordy into math is the trick here .. and i have my doubts if im reading it right

anonymous · Answer

Well I'm the one asking the question so do you think I'm filled with confidence? Assuming that the horrible translation of average is the mean, then yes, that's what the question is saying.

amistre64 · Answer

|dw:1317578043601:dw|

amistre64 · Answer

that doesnt feel right to me

anonymous · Answer

It wouldn't look like that, it would look like this if it's normal
|dw:1317578176187:dw|