11. 20 of the 45 students enrolled in a statistics class lass fall reported the number of hours of TV that Thier they had watched during finals week. Use the individual data listed below to find the mean, mode and standard deviation. 0 3 5 6 9 10 10 11 11 1 1 11 13 14 15 15 17 19 11A. Mean = 9165 Standard Deviation = _5,43 Mode = 11B. Complete the class frequency table 11B below. Find the mean, mode and standard deviation based on table 11B. Table 11B Class x: Hours of TV Freq Mean = 10, 25 midpoints watched (x ) 0-4 Standard Deviation = 5 - 9 10 - 14 Mode = 15 - 19 11C) Why will the answers to the mean, mode and standard deviation of the Class Frequency Table 11A be different than the mean, mode and standard deviation of the actual data listed? To be most accurate should you use the actual data or the summarised table?Section 3 - 2: Measures of Variation 1. The scores for all high school seniors taking the verbal section of the SAT Test in 2018 had a mean of 515 and a standard deviation of 80. The distribution of SAT scores was bell-shaped. Fill in the values for the mean and standard deviations below the line graph. Then use the graph to answer the questions below. .15% 2.35% 13.5% 34% 34% 13.5% 2.35% .15% -3 SD -2 SD -1 SD mean 1 SD 2 SD 3 SD A) What is the range of scores that fall B) What is the range of scores that fall within 1 standard deviation of the mean? within 2 standard deviations of the mean? C) What is the range of scores that fall D) What percent of scores fall within 3 standard deviation of the mean? between 435 and 595? E) What percent of the scores fall F) What percent of the scores falls within between 355 and 675? between 275 and 755? G) What percent of the scores are H) What percent of the scores are greater than 755? less than 275? 1) What percent of the scores fall J) What percent of the scores falls within between 515 and 675? between 355 and 755?2. IQ scores of students at Cal Tech who take the Weschler IQ TEST have a mean of 123 and a standard deviation of 6. The distribution of Cal Tech IQ scores is bell-shaped. Fill in the values for the mean and standard deviations below the line graph. Then use the graph to answer the questions below. .15% 2.35% 13.5% 34% 34% 13.5% 2.35% .15% -3 SD -2 SD -1 SD mean 1 SD 2 SD 3 SD A) What is the range of scores that fall B) What is the range of scores that fall within 1 standard deviation of the mean? within 2 standard deviations of the mean? C) What is the range of scores that fall D) What percent of scores fall within 3 standard deviation of the mean? between 105 and 141? E) What percent of the scores fall F) What percent of the scores falls within between 111 and 135? between 117 and 129? G) What percent of the scores are H) What percent of the scores are greater than 129? less than 123? 1) What percent of the scores fall J) What percent of the scores falls within between 129 and 141? between 111 and 129