答案和详解如下: Q11. Use the results from the following survey of 500 firms to answer the question. Number of Employees
Frequency
300 up to 400 40 400 up to 500 62 500 up to 600 78 600 up to 700 101 700 up to 800 131 800 up to 900 88 The frequency of the third class is: A) 78. B) 180. C) 156. Correct answer is A) The third class is 500 - 600 with a frequency of 78. |