(Solved): Consider the following frequency distribution: a-1. Construct the relative frequency distribution. ...

Consider the following frequency distribution: a-1. Construct the relative frequency distribution. (Round your answers to 3 decimal places.) a-2. What proportion of the observations are in the interval $$20<x?30$$ ? b-1. Construct the cumulative frequency distribution and the cumulative relative frequency distribution. (Round "Cum Frequency" to 3 decimal places.) b-2. How many of the observations are less than 40 ? c. What proportion of the observations are less than 40 ? (Round your answer to 1 decin