Consider the following data set:CLASS Frequency10 up to 2020 up to 3030 up to 4040 up to 50a. Construct the relative frequency distribution. (Round your answers to 3 decimal places.)b. Construct the cumulative frequency distribution and the cumulative relative frequency distribution. (Round "Cumulative Relative Frequency" to 3 decimal places.)CLASS Cumulative Frequency Cumulative Relative Frequency 10 up to 2020 up to 3030 up to 4040 up to 50c-1. What percent of the observations are at least 30 but less than 40? (Round your answer to 1 decimal place.)c-2. What percent of the observations are less than 40? (Round your answer to 1 decimal place.)

Consider the following frequency distribution: Frequency 10 up to 20 12 20 up to 30 15 30 up to 10 25 10 up co 50 a. Construct the relative frequency distribution. (Round your answers to 3 decimal places.) Relative Class Frequency 10 up to 20 20 up to 30 30 up to 40 40 up to 50 b. Construct the cumulative frequency distribution and the cumulative relative frequency distribution. (Round "Cumulative Relative Frequency" to 3 decimal places.) Class Cumulative Cumulative Relative Frequency Frequency 10 up to 20 20 up to 30 30 up to 40 40 up to 50 c-1. What percent of the observations are at least 30 but less than 40? (Round your answer to 1 decimal place.) Percent of observations 6