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 np and n (1 - p) 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 np and n (1 - p) 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