A={2,3} B={4,5} find a union b A union B is everything in A and B A U B = {2, 3, 4, 5}
In a population of 100 persons, 40 persons like tea and 30 persons like coffee. 10 persons like both of them. How many persons like either tea or...
52% of a town's households have children and 25% have pets. If 12% have both, what percent have neither Let C represent households with children....
If n(A)=1200, n(B)=1250 and n(AintersectionB)=320, then n(AUB) is We know that: n(AUB) = n(A) + n(B) - n(AintersectionB) Plugging in our given...
Let A={a,b,c} and B={1,2,3} Compute A∪B Union means all elements in either A or B, so we have: A∪B = {a,b,c,1,2,3}
(A intersection B) U (A intersection B') This is the Universal Set U. Everything that isn't A and isn't B is everything else.
There are 100 people in a sport centre. 67 people use the gym. 62 people use the swimming pool. 56 people use the track. 38 people use the gym...
45 students, 12 taking spanish, 15 taking chemistry, 5 taking both spanish and chemistry. how many students are not taking either? Let S be the...
If A and B are independent events with P(A) = 0.2 and P(B) = 0.6, then P(A U B)=? We know the following formula for the probability of 2 events:...
Out of 53 teachers 36 drink tea 18 drink coffee, 10 drink neither. how many drink both? Let T be tea drinkers Let C be coffee drinkers Let (T &...
A = { 0 , 2 , 4 , 6 , 8 } B = { 0 , 1 , 2 , 3 , 4 , 5 , 6 } C = { 4 , 5 , 6 , 7 , 8 , 9 , 10 } Find ( A ∪ B ) ∩ C A U B is everything in A and B...
26 students 15 like vanilla 16 like chocolate. 3 do not like either flavour. How many like both vanilla and chocolate Define our people: We have...
We have two expressions here, so we need a union since we have the word or. First, All real numbers less than or equal to -1 is x <= -1. All...
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