The weather person said the high for the next day will be 85°F. What the forecaster meant was that the predicted high will be 85°F with a standard deviation of 4 degrees. That is, the mean probability of reaching 85°F is 50 percent.
• What is the chance of having a high of 90°F? ______ percent
• What is the chance of a high of only 74°F? ______ percent
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