These are the 2 questions i need assistance with

Question 6: In his Sociological Perspectives course, John received a grade of 77% on the nal exam. The mean of the exam was 74%, and the standard deviation was 5%. a) What was John's relative position compared to the class average as measured in standard deviations? Show your work and round your final answer to the nearest two decimal places. (5 points) is) What mm: of John's classmates received a lower grade than him? Show your work and round your final answer to the nearest two decimal places. (5 points) Question 7: Using the fictitious sample of seven countries below, calculate and interpret the con'elation between literacy rates and life expectancy. Show your work and round your nal answer to the nearest two decimal places. (10 points) Question 9: Using the fictitious bivariate table below of 1121 respondents examining the effect of age on income level, calculate and interpret a chi square-based measure of association. Show your work and round your final answer to the nearest three decimal places. (10 points) Income by Age Category Bivariate Frequency Table Income Age Total 16 - 30 31 - 45 46 - 60 Low 250 150 85 485 Moderate 82 128 189 399 High 30 95 112 237 Total 362 373 386 1121 Question 10: What is statistical inference? (10 points)