According to her doctor, Mrs. Moore's cholesterol level is higher than only 10% of the females aged 50 and over. The cholesterol levels among females aged 50 mg mg and over are approximately normally distributed with a mean of 240 E and a standard deviation of 25 E . What is Mrs. Moore's cholesterol level? Carry your intermediate computations to at least four decimal places. Round your answer to one decimal place. E XS? [1].. For each of the variables described below, indicate whether it is a quantitative or a categorical (qualitative) variable. Also, indicate the level of measurement for the variable: nominal, ordinal, interval, or ratio. Make sure your responses are the most specific possible. Variable Type of Level of variable measurement X 5 ? O Quantitative O Nominal (a) Duration (in minutes) of a call to a O Ordinal Undo Help customer support line O Interval O Categorical O Ratio O Quantitative O Nominal (b) Color vision status (colorblind or not O Ordinal colorblind) O Interval O Categorical O Ratio O Quantitative O Nominal O Ordinal (c) Letter grade (A, B, C, D, or F) O Interval O Categorical O Ratio