After the financial crisis of 2007/2008, the Dow Jones Industrial Average (DJIA) improved from a low of 7278 on March 20, 2009, to new records just a few years later.
On August 8, 2011, the Dow dropped 634.8 points. A histogram of day-to-day changes in
The DJIA looked like the histogram below. An accurate description of the distribution of
Changes in the DJIA is
A) The distribution is fairly symmetric.
B) The distribution is somewhat left skewed with a number of low outliers.
C) A normal probability plot would add information about the normality of the data Set)
D) Both A and C
E) Both B and C

Question

After the financial crisis of 2007/2008, the Dow Jones Industrial Average (DJIA) improved from a low of 7278 on March 20, 2009, to new records just a few years later.
On August 8, 2011, the Dow dropped 634.8 points. A histogram of day-to-day changes in
The DJIA looked like the histogram below. An accurate description of the distribution of
Changes in the DJIA is 
A) The distribution is fairly symmetric. 
B) The distribution is somewhat left skewed with a number of low outliers. 
C) A normal probability plot would add information about the normality of the data Set) 
D) Both A and C 
E) Both B and C

Quizplus · Accepted Answer

The histogram shows that the distribution is somewhat left skewed with a long tail to the left, indicating a number of low outliers. A normal probability plot would add information about the normality of the data set, suggesting that it is not a normal distribution. Therefore, option E, Both B and C, is the best choice.

After the Financial Crisis of 2007/2008, the Dow Jones Industrial