Question:

1. The mean rate for cable television from a sample of households was $29.50 per month, with a standard deviation of $2.75 per month. Estimate the percent of cable television rates between $24 and $32.25. (Assume that the data set has a bell-shaped distribution.)
2. In 2004 there were 728 "oldies" radio station in the United States. If one station finds that 138 stations have a larger daily audience than it does, what percentile does this station come closest to in the daily audience ranking?

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