Suppose the IQ Scores (Rounded to the Nearest 10) for a Group

question 48

Multiple Choice

Suppose the IQ scores (rounded to the nearest 10) for a group of people are summarized in the table below. Find the quadratic function that best fits the data, using x as the IQ score and y as the number of people in the group with that IQ score. Use a graphing utility to estimate the IQ score of the maximum number of individuals according to the model. Round your final answer to 2 decimal places. ​

• A) The model predicts that the maximum number of people have an IQ score of approximately 96.
• B) The model predicts that the maximum number of people have an IQ score of approximately 90.
• C) The model predicts that the maximum number of people have an IQ score of approximately 90.
• D) The model predicts that the maximum number of people have an IQ score of approximately 96.
• E) The model predicts that the maximum number of people have an IQ score of approximately 90.

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