Daniel's hobby is reading books. His reading time is plotted in the given stem-and-leaf plot. If 3 is added to each observation, what will be the new median?

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Solution

The correct option is C 35
The given stem-and-leaf plot is

The data set is

21, 25, 27, 32, 36, 39, 45.

After each data is added with 3, we get

21+3, 25+3, 27+3, 32+3, 36+3, 39+3, 45+3

24, 28, 30, 35, 39, 42, 48

For a set with an odd number of values, the median is the middle value of the data set when it is arranged in an ascending or descending order.

Hence, the new median is 35.

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