Consider the following frequency distribution: Class Frequency 1000 up to 1100 1100 up to 1200 1200 up to 1300 1300 up to 1400 a-1. Construct the relative frequency distribution. (Round your answers to 4 decimal places.) Class Relative Frequency 1000 up to 1100 1100 up to 1200 1200 up to 1300 1300 up to 1400a-2. What percent of the observations are at least 1100 but less than 1200? (Round your answer to 2 decimal places.) Percent of observations b-1. Construct the cumulative frequency distribution and the cumulative relative frequency distribution. (Round "Cumulative Relative Frequency" to 3 decimal places.) Cumulative Cumulative Class Relative Frequency Frequency 1000 up to 1100 1100 up to 1200 1200 up to 1300 1300 up to 1400b-2. How many of the observations are less than 1300? Number of observations