The mean percent of childhood asthma prevalence in 43 cities is 2.39%. A random sample of 30 of these cities is selected. What is the probability that the mean childhood asthma prevalence for the sample is greater than 2.9%? Interpret this probability. Assume that o = 1.33%. The probability is (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box to complete your choice. (Round to two decimal places as needed.) O A. About % of samples of 30 cities will have a mean childhood asthma prevalence greater than 2.9%. O B. About of samples of 43 cities will have a mean childhood asthma prevalence greater than 2.9%. O C. About of samples of 30 cities will have a mean childhood asthma prevalence greater than 2.39%