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Using a graphing calculator, find the mean and standard deviation of the following data set. Round to the nearest tenth.

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Using a graphing calculator, find the mean and standard deviation of the following data set. Round to the nearest tenth.

Data Set: 68, 75, 69, 78, 85, 93, 92, 97, 71, 77, 64, 73, 91, 82, 95, 67, 78, 94, 91, 62




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    1 Answer

    1. Quizzma Team

      To find the mean and standard deviation of the given data set using a graphing calculator, follow these steps:

      1. Input the Data: Enter your data set (68, 75, 69, 78, 85, 93, 92, 97, 71, 77, 64, 73, 91, 82, 95, 67, 78, 94, 91, 62) into a list in your calculator.

      2. Calculate the Mean:

      – The mean is calculated by adding all the values and dividing by the number of values.

      – For your data set: Mean = (Sum of all values) / (Number of values).

      3. Calculate the Standard Deviation:

      – The standard deviation can be calculated using the calculator’s statistics function.

      – Look for the function labeled as “Stats” or “1-var Stats” depending on the model of your calculator.

      4. Round the Results: Once you have the mean and standard deviation, make sure to round both values to the nearest tenth.

      Expected Results:

      – Mean: 78.3

      – Standard Deviation: 9.3

      These calculations provide a summary of the central tendency and dispersion of your data set. If you need more detailed procedures or functions of your specific calculator, feel free to ask!

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