Question 2(a). The data below provide information about 23 observations taken in a series of different medical treatment for heart diseases patients. The variables patient's heart beat (per minutes). Obs 1 2 3 4 5 6 7 8 9 10 11 12 13. 14 15 16 17 18 19 20 21 22 23 patient's heart beat 70.50 77.30 82.22 62.32 77.34 70.54 63.23 87.32 73.35 85.31 67.89 70.90 67.72 75.31 77.30 86.35 88.14 90.34 65.25 84.21 79.25 60.37 62.21 a) Define the type of the data b) Create the frequency, relative frequency table, and a histogram using equal-width classes with the first class having a lower limit of 60 and class width of 4. c) What is the proportion of observations less than 72?

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