The graph of a normal curve is given Use the graph to identi

The graph of a normal curve is given. Use the graph to identify the value of mu and sigma The value of mu is The value of sigma is

Value of mean = centerred dots = 530

Given that the mean (u) of a normal probability distribution is 530 and the
(a) About 68% of the area under the normal curve is within one standard deviation of the mean. i.e.
(u ± 1s.d)