The following screen shot is the data on the Amazon stock prices from August 8,
ID: 3353313 • Letter: T
Question
The following screen shot is the data on the Amazon stock prices from August 8, 2016 through August 19, 2016. Use the data below to answer the questions Daily prices Date Aug 19, 2016 Aug 18, 2016 Aug 17, 2016 Aug 16, 2016 Aug 15, 2016 Aug 12, 2016 Aug 11, 2016 Aug 10, 2016 Aug 9, 2016 Aug 8, 2016 Close 761.90 762.49756.89 757.31 764.00 765.17760.60 764.46 764.41765.22 759.20 764.63 768.62 768.73 763.82 764.04 771.90 772.04 767.71768.49 768.46 773.15 768.42 772.56 769.94773.75769.12 771.24 769.80772.10 766.19 768.56 767.39772.60 766.90 768.31 766.81767.00 761.02 766.56 Aug 24, 2015-Aug 22,2016 Update Volume 2,343,237 1,458,834 1,891,116 1,604,561 2,118,521 1,563,318 2,019,740 1,604,280 1,876,09-1 1,986,272 Open Ig Low 1. How many observations of the variable, Close Price, are displayed in the table above? 2. What is the sum of the close prices? 7666.16 3. What is the sum of squares of the close prices? 4. Is there a mode in the close prices? 5. What is the median of the close prices? 5877169.621Explanation / Answer
1. There are total 10 observations for the variable, close price.
4. There is no mode in the close prices. But there is a model range which is 764-765 as this is the range with highest frequency.
5. Arranging the numbers in the arranging orders i.e.
757.31,764.04,764.46,764.63,766.56,768.31,768.49,768.56,771.24,772.56
, we find that the middle two terms are 766.56 and 768.31... Averaging the two(i.e. adding the two and then dividing by 2), we find median to be 767.435