The Publisher of a Daily Newspaper Claims That 90% of Its

question 15

Short Answer

The publisher of a daily newspaper claims that 90% of its subscribers are under the age of 30.Suppose that a sample of 300 subscribers is selected at random.Assuming the claim is correct,approximate the probability of finding at least 240 subscribers in the sample under the age of 30.

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Definitions:

Cork Cambium

A lateral meristem that produces cork cells and cork parenchyma; cork cambium and the tissues it produces make up the periderm (outer bark) of a woody plant. Compare with vascular cambium.

Secondary Xylem

The part of a plant that contributes to wood formation, resulting from the division of cambium cells and providing structural support and water transport.

Cork Cells

Specialized cells in the bark of a plant that are dead at maturity and serve to protect and waterproof the plant.

Collenchyma

Living cells with moderately but unevenly thickened primary cell walls; collenchyma cells help support the herbaceous plant body.