Data Analysis
Open the file in MINITAB (LondonCO12n.MTW) and make a histogram of the data. You may need to adjust the intervals (or bins) so that the graph starts at 0 since there can be no data values less than zero. You can do this in MINITAB by adjusting the x-axis as in the tutorial.
Answer the following questions:
(a) Is the distribution of CO levels symmetric, skewed right, or skewed left?
The distribution of CO levels in West London between Jan 1 and Jun 30 in 2000 is skewed right.
(b) Which do you think will be greater, the mean or the median speed? How do you know without calculating them?
The mean would be greater than the median in this scenario. This is known without calculating the mean or the median because with a skewed distribution, the mean is usually farther out in the tail than is the median.
(c) What is the modal class?
The modal class in this scenario is the first bar on the left (0.0 – 0.2) as this interval has the most number of numbers.......
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