X follows a Poisson distribution with mu = 9.2. P(X > 14) is approximately:

Question 1 options:

1)

0.4599

2)

0.5401

3)

0.0401

4)

0.9599

Using 'sampling without replacement', a sample is to be randomly drawn from a population. The details are specified below:

Sample size = 31

Population size = 341

Population standard deviation = 21.90

The standard error of the mean to 4 d.p. is:

Question 2 options:

4.6797

3.7558

1.1860

3.9334

A large population (N>10,000,000) is normally distributed with the following parameters:

Population mean = 60.30

Population standard deviation = 26.00

A random sample of size n=25 is taken.

The probability that the sample mean will be greater than67.58 is:

Question 3 options:

0.6103

0.0808

0.9192

0.3897