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Wingspans of adult herons have approximate normal distribution with mean 125 cm and standard deviation of...

Wingspans of adult herons have approximate normal distribution with mean 125 cm and standard deviation of 12 cm. What portion of herons have wingspan more than 140 cm? What is the median wingspan? What are the first and third quartiles of the wingspans? (25% of all herons have wingspan less than the first quartile; 25% have wingspan more than the third quartile) Use these to obtain the IQR for heron wingspans.

please explain in clear details, I have a college exam coming up ;-;

math   Statistics-And-Probability   
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