The following histogram summarizes Apple Incs monthly stock

The following histogram summarizes Apple Inc\'s monthly stock for the years 2007 through 2011(http://finance.yahoo.com data retrieved April 20,2012). Is the distribution symmetric? If not, is it positively or negatively skewed? Over this five-year period, approximate the minimum monthly stock price and the maximum monthly stock price. Over this five-year period, which class had the highest relative frequency.

Solution

(a). The given distribution is not symmetric. Since it is skewed towards right side therefore, it is considered positively skewed.

(b). Over the five -year priod, the approximate minimum and maximum monthly stock price can be obtained from the given hostogram as $ 50 nad $ 450 respectively.

(c). As can be observed from the given histogram that the over the given five-year period class (50 - 150 has the highest frequency of 0.35