SOLUTION: Which of the following statements are correct? a.A normal distribution is any distribution that is not unusual. b.The graph of a normal distribution is bell-shaped. c.If a pop

Algebra ->  Probability-and-statistics -> SOLUTION: Which of the following statements are correct? a.A normal distribution is any distribution that is not unusual. b.The graph of a normal distribution is bell-shaped. c.If a pop      Log On


   

Question 281458: Which of the following statements are correct?
a.A normal distribution is any distribution that is not unusual.
b.The graph of a normal distribution is bell-shaped.
c.If a population has a normal distribution, the mean and the median are not equal.
d.The graph of a normal distribution is symmetric.
Found 2 solutions by brucewill, bstatistic:
Answer by brucewill(101) About Me  (Show Source):
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a.A normal distribution is any distribution that is not unusual.
This is not necessarily true; not unusual does not directly mean a "normal distribution".
b.The graph of a normal distribution is bell-shaped.
By definition, this is true.
c.If a population has a normal distribution, the mean and the median are not equal.
This may or may not be true; mean and median are different measures of central tendancy.
d.The graph of a normal distribution is symmetric.
Again, by definition, this is true.

Answer by bstatistic(1) About Me  (Show Source):
You can put this solution on YOUR website!
A. false
B. true
C. false
D. true