Emissions of sulfur dioxide by industry set off chemical changes in the atmosphere that result in "acid rain". the acidity of liquids is measured by ph on a scale of 0 to 14. distilled water has ph 7.0, and lower ph values indicate acidity. normal rain is somewhat acidic, so "acid rain" is sometimes defined as rainfall with a ph below 5.0. the ph of rain at one location varies among rainy days according to a normal distribution with mean 5.43 and standard deviations 0.54. what proportion of rainy days have rainfall with ph below 5.0?
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Ответ:
The proportion of rainy days that have rainfall with pH below 5.0 is about 0.2294
Explanation:
x < 5.0 corresponds to z < -0.7407, for which Table A gives 0.2294.
p(pH < 5)
Ответ:
please explain your question more to answered it please explain
Explanation: