Find the slope and y−intercept of the line in the graph. Drag and drop each number into the correct box to complete the statemen
t. (Image is attached with full question. All help is highly appreciated!)
1 answer:
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Answer:
110
Step-by-step explanation:
We have been given that the mean IQ score is 100 and the standard deviation is 15.
We will use normal distribution table to solve our given problem.
The top 25% of the population will represent scores greater than 75%.
The z-score corresponding to data greater than 75% is 0.6745.
Upon substituting our given values in z-score formula, we will get:
Therefore, the top 25% of the population (ranked by IQ score) have IQ’s above 110.