Meteorologists need of rainfall on average per year in the Sakon R. perfectly random questionnaire in the past 16 years, calculated the average rainfall was 54%, a standard deviation of 8.24 inches, said the devil average rainfall of 54 inches. What about the average rainfall per year. The fall in Sakon The 99% level of confidence that if there is no rainfall Ltd parse normal.
การแปล กรุณารอสักครู่..