In your churchs stock of hymnals, 35 of the hymnals are of the old edition. Half the

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In your church’s stock of hymnals, 35 of the hymnals are of the old edition.

Half the hymnals have a flyer about your upcoming Christmas concert.

Nine out of ten of your church’s hymnals are either old or have a flyer about your Christmas concert.

(a) What is the proportion of hymnals that also have a flyer?

(b) Call the set of old edition hymnals E, and the set of hymnals with a flyer in them F.Writing p(A) as the proportion of a set A, write the relation above as a general statement about the proportions p(S), p(L), p(SL), and p(S ∪ L).

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