Draw a Venn diagram with two circles. First circle is iced cupcakes, second one is cupcakes with walnuts.
As for the probability:
Let A = "iced", B = "with walnuts". We know N(total), N(A), N(A ⋂ B) and N(¬A ⋂ ¬B). Then, looking at the Venn diagram, we get:
N(B) = N(total) - N(¬A ⋂ ¬B) - N(A) + N(A ⋂ B)
So, the probability is:
P(B) = N(B)/N(total) = 1 - (N(¬A ⋂ ¬B) + N(A) - N(A ⋂ B))/N(total)
#i'm slowly loosing it
tiny sky
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what do i do for this part-
N(B) = N(total) - N(¬A ⋂ ¬B) - N(A) + N(A ⋂ B)
tiny sky
Observe it using your Venn diagram.
tiny sky
..
Not exactly. 16 is the amount corresponding to the whole circle on the left. So, it should be like this.
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Not exactly. 16 is the amount corresponding to the whole circle on the left. So,...
where did the 9 come from