1. A medical research team studied the ages at which patients had strokes because of stress. The ages are as follows. Construct a frequency table with 8 classes. Use 27 as a minimum and 62 as a maximum. 27 28 29 30 32 32 36 36 36 36 38 38 38 40 40 40 41 41 45 45 46 46 47 50 50 50 50 55 56 57 58 58 58 60 61 61 61 62 Lower Class Lower Boundaries Class Upper Class Limits Limits Upper Class Boundaries Frequencies Relative Frequencies Answer the following questions: a) What is the class width? b) What percentage of the sample had a stroke at 46 or younger? c) What percentage of the sample had a stroke at 47 or older? d) What is the mean age of the sample? f.x e) ESTIMATE the mean age from your frequency distribution using the formula where x is the midpoint of each class and f is the frequency.