A nationwide test taken by high school sophomores and juniors has three sections, each scored on a scale of 20 to 80. In a recent year, the national mean score for the writing section was 49.2, with a...

see pictures for question a and b

Extracted text: A nationwide test taken by high school sophomores and juniors has three sections, each scored on a scale of 20 to 80. In a recent year, the national mean score for the writing section was 49.2, with a standard devlation of 10.6. Based on this infomation, complete the following statements about the distribution of the Scores on the writing section for the recent year. a) According to Chebyshev's theorem, at least (about 89%) of the Scores lle between and. (Round your answer to 1 decimal place.) 'b) According to Chebyshev's theorem, at least (Choose one) of the Scores lie between 28.0 and 70.4. 36 56% 755 84% 89%6