So the desired area is the x^2 +2x
or the x/5
must be x/5 to fit in C
Sum of C= 2x^2+27x/10
Sum of C=1=>20x^2+27x-10=0
But now there are two values... I canot eliminate one because there is no reason that the answer must be positive
#Venn Diagrams
swift sundial
boreal ember
So the desired area is the x^2 +2x
or the x/5
must be x/5 to fit in C
Sum of...
sum of c does not equal 1
although i dont think it matters
boreal ember
So the desired area is the x^2 +2x
or the x/5
must be x/5 to fit in C
Sum of...
a probability cant be negative lol
swift sundial
sum of c does not equal 1
Why not? since it's the given possibilities
surely you consider C only
swift sundial
a probability cant be negative lol
X can be negative though
boreal ember
how
swift sundial
Because, divide neg by neg = pos
and its all in terms of x
so the values will have the same polarity (numerator and denominator)
swift sundial
if x is negative that probability is negative
the venn diagram isnt showing probability itself though. it is showing a number of a thing, the probability is when you divide BnA'nC by C
i think
boreal ember
the venn diagram isnt showing probability itself though. it is showing a number ...
the parts of the venn diagram are still labelled probabilities
swift sundial
the parts of the venn diagram are still labelled probabilities
but then you'd be dividing a probability by a probabiliry
boreal ember
but then you'd be dividing a probability by a probabiliry
that’s fine lol
if we couldnt do that maths would have a big problem
swift sundial
Okay, so venn diagram numbers MUST ALWAYS BE POSITIVE?
boreal ember
lol
yes
unless its
giving you like the actual elements
in each set
otherwise they dont even have to be numbers
swift sundial
giving you like the actual elements
How do you know if it is giving you actual elements or number of elements
boreal ember
How do you know if it is giving you actual elements or number of elements
actual elements means each one is listed one by one in the venn diagram
so a might be “frog, bird, apple”
swift sundial
I often see numbers as elements
Like 'multiples of 9'
but it doesnt tell you thats what it is. so how do you know if it is n(elements) or elements
boreal ember
I often see numbers as elements
Like 'multiples of 9'
but it doesnt tell you t...
the question will tell you somehow
mellow ledge
i think if we assume that the venn diagram includes probabilities we can say that they all add up to one. this q needs a little more context tho
round onyx
if this comes up, im finished especially venn diagrams i hate them
mellow ledge
fun question