The lengths of randomly selected taxicab rides, in minutes, from a certain airport, are shown. 14 21 33 18 5 27 20 20 15 16 35 9 4 19 9 17 19 Which measure or measures of central tendency best reflect the data? Choose all answers that are correct. mean median mode
first sort them in order
okay
4, 5, 9, 9, 14, 15, 16, 17, 18, 19, 19, 20, 20, 21, 27, 33, 35
Now lets identify, the mean, the mode, and the median.
the mean is the arithmetic average of the values, add them all up divide by the number
mean=average of all the numbers mode= the number that appears most often median= middle number sorry i took so long i had to look up mean
right
what is the questions asking? i dont really understand it.
It is asking, of those three options, mean median or mode, which one best represents the 'center' of the taxicab length of ride
oh median
what is a typical length of ride from the airport, from those selected data values
median and mean are pretty close in this example
18
we use the median usually in the case when there are outliers. otherwise we use the mean
either one is fine,
mean and median are very close
mean and median. but not mode, do you see why not mode?
yes, because is 19, and 20....which is not 18. and 18 is how long a typical taxi cab ride to the airport is.
right, this data set does not have a single mode, so its not useful
it can be more than one option, so mean and median
right
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