1) After doing some research is appears that the amount of study time needed for a student to pass Chemistry class is normally distributed with a mean of 4.3 hours per week and a standard deviation of 1.2 hours. a) sketch and label a normal curve of the distribution b) What percentage of students study less than 5.5 hours to pass Chemistry? c) What percentage of students study more than 1.9 hours to pass Chemistry? d) What percentage of students study between 1.9 and 5.5 hours to pass Chemistry? e) What percentage of students study a usual amount of time to pass Chemistry 1') What percentage of students study a very unusual amount of time to pass Chemistry? g) What would be the time range for a student who studies an unusual amount of time to pass Chemistry? h) What would be the time range for a student who studies a very unusual amount of time to pass Chemistry? 2)Police estimate that 27% of drivers do not have insurance. They setup a safety roadblock, stopping cars to check for insurance. After stopping 20 cars at the roadblock, how many drivers do they expect to nd who do not have insurance