need help with these two statistic questions regarding standard deviation and the central limit theorem.

The average per capita income for residents of Pennsylvania is $32,711 with a standard deviation of $3,100. If the variable is normally distributed, find the probability that the mean income of a sample of 50 residents would be less than $33,000. Express your answer as a decimal to four decimal places. Your Answer: Answer Question 7 (1 point) The average laptop computer has a lifespan of 48 months with a standard deviation of 6.8 months. Assuming the lifespan is normally distributed, find the probability that the mean of a random selection of 30 computers will be more than 50 months. Write your answer correct to four decimal places. Your