A normally distributed population has a mean p 190 and a st

A normally distributed population has a mean p - 190 and a standard deviation of o = 67. A single data point from this population is selected. The probability that the data point is less than 160 The probability that the data point is between 110 and 270 is _ The middle interval containing 90% of all data points in the population is A random sample of size n = 25 is taken from this population. The probability that the sample mean x will be less than 160 is

Solution

3. The probability that the data point is less than 160 is:

option c: 0.6412

4. The probability that the data point is between 110 and 270 is:

option a: 0.8826

5. The middle interval containing 90% of all data points in the population is:

option c: 85.8 294.2