5. In the following list of numbers, 2, 1, 3, 7, 4, 19, 5, 30, 19, 1, 7, 19, 30, 16, 7, 33, 21, 19, 1; find its median and mode.
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5. In the following list of numbers, 2, 1, 3, 7, 4, 19, 5, 30, 19, 1, 7, 19, 30, 16, 7, 33, 21, 19, 1; find its median and mode.
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Answer:
Median = 7
Mode = 19 (unimodal)
Explanation
How to find the median:
1. Put the numbers in order (from lowest to greatest)
From this = 2, 1, 3, 7, 4, 19, 5, 30, 19, 1, 7, 19, 30, 16, 7, 33, 21, 19, 1
To this = 1, 1, 1, 2, 3, 4, 5 7, 7, 7, 16, 19, 19, 19, 19, 21, 30, 30, 33
2. Find the middle number
The middle number is 7 which is the median.
How to find the mode:
It is the most frequent number in the data.
Most frequent are:
1 = 3
7 = 3
19 = 4
30 = 2
The 19 is the most frequent number, which is the mode.