<PRE><B>Question 368776</B>
a. A normal distribution is any distribution that is not unusual. &lt;br&gt;

FALSE  The normal distribution is a particular continuous probability distribution which is mound-shaped, where the values tend to cluster around the mean, but it is not the opposite of &quot;unusual.&quot; &lt;br&gt;

b. The graph of a normal distribution is bell-shaped. &lt;br&gt;

TRUE&lt;br&gt;

c. If a population has a normal distribution, the mean and the median are not equal. &lt;br&gt;

FALSE  In a normal distribution, the mean, median, and mode are all equal.&lt;br&gt;

d. The graph of a normal distribution is symmetric. &lt;br&gt;

TRUE  It is symmetric with respect to the mean.&lt;br&gt;</PRE>