A company has 300 employees. Each year, there is a 30% turnover rate for the employees. The total number of employees who leave each year follows a...

A company has 300 employees. Each year, there is a 30% turnover rate for the employees. The total number of employees who leave each year follows a binomial distribution. Now, we want to use the normal approximation to this binomial distribution. Then in this normal distribution, the mean is ______ and the standard deviation is _____.