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Fuel mileage is uniformly distributed between 5 km/L to 12 km/L. What is the probability that on the next trip, fuel mileage is between 6 to 9 km/L
 one year ago
 one year ago
Fuel mileage is uniformly distributed between 5 km/L to 12 km/L. What is the probability that on the next trip, fuel mileage is between 6 to 9 km/L
 one year ago
 one year ago

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amistre64Best ResponseYou've already chosen the best response.2
125 = 7 dw:1350993412929:dw
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
ahh finally...someone who understands
 one year ago

amistre64Best ResponseYou've already chosen the best response.2
iwould take a gander and say\[\frac{1}{7}{(96)}\]
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
what's that 1/7 by the way?
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
dw:1350993820431:dw
 one year ago

amistre64Best ResponseYou've already chosen the best response.2
a distribution curve has an area of 1 underneath it. since this is a uniform distribution. the "curve" is just a rectangle box with an area of 1 since the width is 7 units wide; the height of the box would have to be 1/7 to get an area of 1
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
hmm...that's an intuitive way of solving it....and here i thought i have to do \[\huge \int \limits_a^b f(x)dx\]
 one year ago

amistre64Best ResponseYou've already chosen the best response.2
when it gets to normal distributions with a bell curve; they were nice enough to write down tables of for the integration :)
 one year ago

amistre64Best ResponseYou've already chosen the best response.2
a z table is a table of probabilities; it is written up for the same reason that sin and cos tables are written up. So that we dont have to suffer thru the integration of some ungodly looking integral
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
...you have succeeded in confusing and scaring me at the same time....
 one year ago

amistre64Best ResponseYou've already chosen the best response.2
yay!! happy halloween :)
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
it's already christmas from where i am
 one year ago

amistre64Best ResponseYou've already chosen the best response.2
hmmm, happy hanakah? ;)
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
anyway...this would just be \[\int \limits_a^b \frac 1{ba} dx\] yes?
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
wait...that's wrong
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
\[\int \limits_a^x \frac 1{ba}dx\] yes?
 one year ago

amistre64Best ResponseYou've already chosen the best response.2
if you wanted to do the \[\int f(x)dx\]then a uniform distribution is a constant function \[\int_{5}^{12}k~dx=1\] \[12k5k=1\] \[7k=1\] \[k=\frac17\] therefore \[\int_{6}^{9}\frac17~dx\]
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
so...i am right...yes?
 one year ago

amistre64Best ResponseYou've already chosen the best response.2
1/(ba) does generalize it yes. but the interval [a,x] seems a little off. that should simply be the interval across which you are integrating and should prolly not be confused with the other parts
 one year ago
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