Determine whether the graph to the right can represent a variable with a normal

Question

Determine whether the graph to the right can represent a variable with a normal distribution. Explain your reasoning. If the graph appears to represent a normal distribution, estimate the mean and standard deviation. Conclude the graph represent a variable with a normal distribution? Explain your reasoning. Select the correct choice below and if necessary, fill in the answer within your choice. A. Yes, the graph the properties of the normal distribution. The mean is approximately and the standard deviation is about (Round to two decimal places as needed.) B. No, because the graph crosses the x-axis. C. No, because the graph is skewed left. D. No, because the graph is skewed right.

Explanation / Answer

Answer to this question is C i.e. the graph is skewed to the left

A normal distribution has a non skewed grapg i.e. the values on the left is equal to the values on the right of the middle point of the graph

From the given graph, it can be clearly seen that most of the values are at the left of the graph and hence the graph is skewed to the left or is negatively skewed

so the answer is C(the graph is skewed to the left)

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