normally distribued and o find the mean
1.A population is normally distributed with a mean of 6.8 and a standard deviation of 0.2. What is the probability that a randomly selected member of the population will have the measures between 6.5 and 6.7?
2.The mean monthly attendance at a sports arena is 8540, with a
standard deviation of 425. What is the probability that the monthly attendance will be more than 9000?
3.In a sample of 9600 Florida oranges, the mean mass is 985 g, with a standard deviation of 50 g. How many are expected to have a mass less than 1000 g?
Please any one can help me with these question.. I due in 15 min.. I tried so hard to finish them bu I couldn't.. Can any one please help me finish them , I have only 15 min left to submit them.
