Asmooth curve which approximates the shape of a histogram and describes the overall pattern of a distribution is called

A smooth curve which approximates the shape of a histogram and describes the overall pattern of a distribution is called density curve. A density curve is a graph that shows probability. The area under the density curve is equal to 100 percent of all probabilities and can be a skewed distribution. The right or left skew does not refer to how the graph looks but it refers to whether the data is skewed.

Ithink the answer should be b.