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Mathematics 72 Online
OpenStudy (dopeeaf):

please help me !!! anyone ?? The graph shows a probability distribution. What is P(1.5≤X≤4.5)? Enter your answer, as a decimal, in the box. P(1.5≤X≤4.5) =

OpenStudy (dopeeaf):

OpenStudy (error1603):

Nice picture

OpenStudy (amorfide):

work out the function, then integrate between the limits 1.5, and 4.5

OpenStudy (error1603):

1.

OpenStudy (dopeeaf):

huh? ^

OpenStudy (error1603):

nvm

OpenStudy (amorfide):

Error, the area under it would be one, by definition of a probability density function

OpenStudy (dopeeaf):

so do i multiply

OpenStudy (allauhakbar):

yeah

OpenStudy (error1603):

Yes you do @dopeeaf

OpenStudy (dopeeaf):

okay well i got 6.75

OpenStudy (allauhakbar):

That's current.

OpenStudy (error1603):

Wait let me see

OpenStudy (error1603):

Yes it is current

OpenStudy (dopeeaf):

its correct ?

OpenStudy (allauhakbar):

yeah

OpenStudy (dopeeaf):

thanks ! could you help me with 2 more questions ??

OpenStudy (allauhakbar):

sure

OpenStudy (allauhakbar):

yes

OpenStudy (error1603):

ok

OpenStudy (dopeeaf):

Use the probability distribution graph to answer the question. What is P(X<3)? 0.125 0.25 0.75 0.875

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