Which of the following is not a characteristic of the normal probability distribution? Note: The question is about normal distribution; not about standard normal distribution.
A.) The distribution is symmetrical
B.) The standard deviation must be 1
C.) The mean of the distribution can be negative, zero, or positive
Option B) is correct.
B.) The standard deviation must be 1
Standard deviation for normal distribution will be other than 1 also.
Which of the following is not a characteristic of the normal probability distribution? Note: The question...
Which of the following is not a characteristic of the normal probability distribution? Multiple Choice 0 The mean is equal to the median, which is also equal to the mode. 0 The total area under the curve is always equal to 1. 0 The mean is 0 and and the standard deviation is 1. The The distribution is symmetrical
8. Which of the following is not a characteristic of the normal probability distribution? Select one: a. Symmetry b. The total area under the curve is always equal to 1. c. 99.72% of the time the random variable assumes a value within plus or minus 1 standard deviation of its mean d. The mean is equal to the median, which is also equal to the mode. 10. Given that z is a standard normal random variable, what is the probability...
(10) 12. Which of the following characteristics are true for a normal probability distribution? (CIRCLE ALL THAT ARE TRUE) A) The area under the curve is 1. B) It is symmetrical. C) The midpoint is also the mean. D) The total sample space for the normal distribution is all positive integers E) 95% of the area under the Normal PDF curve is within One Standard Deviation from the Mean.
Which of the following is not a characteristic of the normal distribution? a) The total area under the curve is 1.0 b) The curve is symmetric about the mean c) The value of the mean is always greater than the value of the standard deviation d) The two tails of the curve extend indefinitely
Answer questions 23 and 24 based on the following: The mean annual cost of automobile insurance is $939. The standard deviation is $300. You have been asked to compute the probability that a simple random sample of automobile insurance policies of size 100 will have a sample mean within $30 of the population mean. 23. Compute the standard deviation of the population. (a) $300 (b) $3 (c) $1.73 (d) $5.48 (e) $30 24. Compute the probability that a simple random...
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Incorrect Question 9 0/1pts Which of the following is NOT a characteristic of the normal probability distribution? The total area under the curve is ahways equal to 1 O The graph of the curve is the shape of a recta The randon variable assumes a alue with n plus or minus three standard detations of its mean 99 72% of the time The mean s equal to the median, which is alio equal to the mode
0.In a normal distribution, plus and minus 2 standard deviations from the mean will include about what percent of the observations? A) 50% B) 99.7% C) 95% D)68% 21. What is the area under the normal curve between z -0.0 and z-2.0 A) 1.0000 B) 0.7408 C) 0.1359 D) 0.4770 22. Which of the following is NOT a characteristic of the normal probability distribution? A) Positively-skewed B) Bell-shaped C) Symmetrical D) Mean Mode and median are all equal 23. A...
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A normal probability distribution a. has a standard deviation of 0. O b. must have a standard deviation of 1 and a mean of 0. c. needs to have a mean of 0. d. can have mean of any numerical value.