Statistics
Range
Grade 11
Question:
<p>The range of the following set of observations 2, 3, 5, 9, 8, 7, 6, 5, 7, 4, 3 is</p>
<p>11</p>
<p>7</p>
<p>5.5</p>
<p>6</p>
Step-by-Step Solution
Key Concept: Range is simply the difference between the maximum and minimum values in a dataset. Identify the largest and smallest observations, then subtract.
<p><strong>Step 1:</strong> Identify the maximum value in the dataset: {2, 3, 5, 9, 8, 7, 6, 5, 7, 4, 3}</p><p>Maximum value = 9</p><p><strong>Step 2:</strong> Identify the minimum value in the dataset</p><p>Minimum value = 2</p><p><strong>Step 3:</strong> Apply the formula for range</p><p>Range = Maximum − Minimum = 9 − 2 = 7</p><p>∴ Answer: B (Range = 7)</p>
Correct Answer: B