The number of hits on a certain website occurs at an average rate of 6.5 per minute. What is the probability that exactly 4 hits will occur in the next minute? (Rounded to 3 decimal places) What is the expected number of hits in the next 2 minutes? (Rounded to 1 decimal place) Advertising on the website generates an average income of R0.69 per hit. What is the expected income in the next 2 minutes? (Rounded to 2 decimal places) What is the variance of the number of hits per minute? (Rounded to 1 decimal place) What is the standard deviation of the number of hits per minute? (Rounded to 2 decimal places) What is the standard deviation of the income per minute? (Rounded to 2 decimal places)