# Find probabilities using F distribution tables

• September 9th 2012, 04:46 PM
homalina
Find probabilities using F distribution tables
I need to find the answer to x~F (11,10) and P(X<or equal to2.94)... How do we use the table? How do we kow what percent critical values should we look into?
• September 9th 2012, 05:03 PM
MaxJasper
Re: Find probabilities using F distribution tables
$P\left(x\leq 2.94\left|\nu _1\right.=11,\nu _2=10\right)=0.94985$

http://mathhelpforum.com/attachment....1&d=1347239601
• September 9th 2012, 06:02 PM
homalina
Re: Find probabilities using F distribution tables
Thank you so much but how?

Tell me the one for X~F(16,75) P (X>and equal to 2.89)
Do we use the F tables? how?
• September 9th 2012, 06:11 PM
MaxJasper
Re: Find probabilities using F distribution tables
Quote:

Originally Posted by homalina
Tell me the one for X~F(16,75) P (X>and equal to 2.89)
Do we use the F tables? how?

$1-P\left(x<2.892\left|\nu _1\right.=16,\nu _2=75\right)=0.0029857$
• September 9th 2012, 06:37 PM
homalina
Re: Find probabilities using F distribution tables
Can you tell me this also pretty please - Attachment 24754

Thanks a bunch!