Suppose that among gifted seventh-graders who score very high on a mathematics exam, approximately 20% are left-handed or ambidextrous. Let X equal the number of left-handed or ambidextrous students among a random sample of n = 25 gifted seventh-graders. Find P(2 < X < 9)
(a) Using Table II in Appendix B.
(b) Approximately, using the central limit theorem.
REMARK Since X has a skewed distribution, the approximation is not as good as that for the symmetrical distribution where p = 0.50, even though np = 5.
Financial Accounting 2.1 The rules of debit and credit were debit stands right and credit stands left of a chart. In the account there is a record of increases and decreases in asset, liability, equity, revenue, or expense item. The account consists of the title, the left debit side, and the right credit side. It...