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The average retail price of gasoline all types for the first half of 2005 was 212 2 cents What would the standard deviation have to be in order for a 23% probability that a gallon of gas costs less

The average retail price of gasoline (all types for the first half of 2005 was 212.2 cents. What would the standard deviation have to be in order for a 23% probability that a gallon of gas costs less than $1.80? Roundz-value calculations to 2 decimal places and final answer to the nearest cent. Source: World Almanac. Standard deviation is cents.

Aug 01 2020 View more View Less

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