x 1 2 3 4
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P(X=x) 0.2 0.3 0.4 0.1
Calculate P(1
Please show me HOW do do this i am stumped!
2007-11-07 07:04:24 · 3 answers · asked by My pic looks good 2 in Science & Mathematics ➔ Mathematics
the answer is 0.7
1-0.2-0.1=0.7
I was looking at the answers on the wrong page!
2007-11-07 07:21:51 · update #1
P( 1 < X ≤ 3)
= P( X = 2) + P( X = 3)
= 0.3 + 0.4
= 0.7
2007-11-07 16:46:31 · answer #1 · answered by Merlyn 7 · 0⤊ 0⤋
do you mean 1
or do you mean 1
anyway, after you sort out what the question is asking, just LIST the values of x described by the conditions. (in my first interpretation, that would be 2,3,4.)
Then add up the probabilities of those values of x.
2007-11-07 07:17:27 · answer #2 · answered by Michael M 7 · 0⤊ 0⤋
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2007-11-07 07:11:24 · answer #3 · answered by James J 1 · 0⤊ 0⤋