1 4.Hw 107 Notes Ask Your Teachr In one of its Spring catalogs, L.L. Bean advert

Question

1 4.Hw 107 Notes Ask Your Teachr In one of its Spring catalogs, L.L. Bean advertised footwear on 27 of its 192 catalog pages. Suppose we randomly survey 20 pages. We are interested in the number of pages that advertise footwear. Each page may be picked more than once. Part (a) In words, define the random variable X the number of pages in the catalog the number of pages we must survey until we find one that advertises footwear O the number of pages that advertise footwear henumber of footwear ,yes the number of times a page could be picked Part (b) List the values that X may take on. x1,2,27 x.0, 1,2, , 192 X1,2, 20 ??»?,1,2, 20

Explanation / Answer

a) Use excel function

BINOM.DIST(9,20,27/192,TRUE)

= 0.9999

B) Use excel function

BINOM.DIST(3,20,27/192,TRUE)

= 0.6929

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