general math MCQ #11945

Interest amounts earned by nine depositors last month were Rs 1200 repeated nine times. What is the standard deviation of these amounts in Rs?

general math MCQ #11945

  1. Question 1

    Q1. Interest amounts earned by nine depositors last month were Rs 1200 repeated nine times. What is the standard deviation of these amounts in Rs?

    • A) 0
    • B) 120
    • C) 400
    • D) 1200

    Answer: 0

    Explanation: When every data value is identical, all deviations from the mean are zero, so the standard deviation is 0.