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The ACT distribution of scores is normally distributed. Frank received his History Act score in the mail. The mean was 42 for all students in the country and the associated standard deviation was 10. If Frank was at the 64th percentile, what was his ACT score. Choose the best answer O 29.2 O 64.0 O 45.6 0 57.2 QUESTION 17 In a survey, it was found, for this normally distributed sample, that 72% of adults eat a candy bar with a fork and knife. If 400 adults are randomly selected, A. 288 how many would we expect to eat a B. No candy bar with a fork and knife? C. 112 Would it be unusual to observe 320 D. Yes adults who eat a candy bar with a fork E. 308 and knife? F. 20 CCC library has a grand total of 400,000 books of which 130,000 are Stats books. What proportion of the library books are Stats books ? Choose the best answer O 3.077 O 0.325 0 0.675 O 0.412 Choose the best answer: Hint: you can answer without a table. Given a normal distribution of ACT scores with a population mean of 21 and a population standard deviation of 5, what percent of the scores are less A. approximately 44 than 21 B. approximately 32 what percent of the scores are C. approximately 16 between 16 and 26, D. approximately zero what percent of the scores are greater E. approximately 50 than 26 F. approximately 68 G. approximately 75