Choose the best answer

1.			The normal distribution is a
			A)	Discrete distribution
			B)	Continuous distribution.
			C)	Positively skewed distribution
			D)	None of the above.
2.			Which of the following are characteristics of the normal distribution?
			A)	It is a symmetric distribution.
			B)	It is bell-shaped.
			C)	It is asymptotic.
			D)	All of the above.
3.			Which of the following are correct statements about a normal distribution?
			A)	It cannot assume negative numbers.
			B)	It is defined by its mean and standard deviation.
			C)	All normal distributions have a variance of at least 1.
			D)	All of the above are correct.
4.			Which of the following statements is correct regarding the standard normal distribution?
			A)	It is also called the z distribution
			B)	Any normal distribution can be converted to the standard normal distribution
			C)	The mean is 0 and the standard deviation is 1.
			D)	All of the above are correct.
5.			The area under a normal curve between 0 and -1.75 is
			A)	.0401
			B)	.9599
			C)	.4599
			D)	None of the above.
6.			The area under a normal curve less than 1.75 is
			A)	.0401
			B)	.9599
			C)	.4599
			D)	None of the above.
7.			The continuity correction factor is used when
			A)	The sample size is at least 5.
			B)	Both nπ and n(1 - π) are at least 30.
			C)	A continuous distribution is used to approximate a discrete distribution.
			D)	The standard normal distribution is applied.
8.			A uniform distribution is defined by
			A)	Its largest and smallest value.
			B)	Largest value
			C)	Smallest value
			D)	None of the above.
9.			The normal approximation to the binomial is used when
			A)	The sample size is at least 30.
			B)	Both nπ and n(1 - π) are at least 5.
			C)	The mean and the variance are the same.
			D)	The z value is greater than 0.
10.			In the standard normal distribution, what is the probability of finding a z value between -1.25 and -1.00?
			A)	0.3944
			B)	0.3413
			C)	0.7357
			D)	0.0531