Question 2.240

103. Stock Prices. Refer to the histogram of stock prices of 19 technology firms.

  1. How could we turn this into a relative frequency histogram? Would the classes or the rectangles be affected?
  2. Suppose we were given a relative frequency histogram instead. How could we turn it into a frequency histogram?
  3. What is the sample size?

2.2.103

(a) Divide the frequency values by the total frequency—classes not affected (b) change the scale along the relative frequency (vertical) axis by multiplying the relative frequency values by the total frequency—shape of distribution not affected (c) 19