Consider the following cumulative relative frequency distribution. Class Cumulat

Question

Consider the following cumulative relative frequency distribution.   Class Cumulative
Relative
Frequency   150 up to 200 0.21   200 up to 250 0.28   250 up to 300 0.51   300 up to 350 1.00 a-1. Construct a relative frequency distribution. (Round your answers to 2 decimal places.)   Class Relative
Frequency   150 up to 200          200 up to 250         250 up to 300         300 up to 350         Total       a-2. What percent of the observations are at least 300 but less than 350?   Percent of observations Consider the following cumulative relative frequency distribution.

Explanation / Answer

a-1.

Note that to get the relative frequencies, we simply subtract the consecutive cumulative frequency values.

Thus, consider the table:

a-2.

As we can see in the table, those at least 300 but less than 350 is 49% of the observations. [ANSWER, 49%]

Class Relative Frequency 150-200 0.21 200-250 0.07 250-300 0.23 300-350 0.49 Total 1

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