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A set of data consists of 38 observations. How many classes would you recommend for the frequency distribution?  A set of data consists of 45 observations between $0 and $29. What size would you recommend for the class interval?  A set of data consists of 230 observations between $235 and $567. What class interval would you recommend?  A set of data contains 53 observations. The lowest value is 42 and the largest is 129. The data are to be organized into a frequency distribution.

a. How many classes would you suggest?

b. What would you suggest as the lower limit of the first class?

 
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