The median is 19.
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Write the data in a numerical order: 17 18 23 24 26 26.Since there is an even number of the data, the median is the average of the two numbers that are in the middle, (23 + 24)/2 = 23.5.The mode is 26 because it is the only number which appears twice.Mean = (17 + 18 + 23 + 24 + 26 + 26)/6 = 134/6 = 22.3333... = 22 3/9 = 22 1/3.
Median: 25 Mean: 23
mean(18, 23, 39, 10, 22, 17, 16, 15) = (18 + 23 + 39 + 10 + 22 + 17 + 16 + 15) ÷ 8 = 160 ÷ 8 = 20
The median is 20. When a list has an even number of data, there is no one middle value, so instead you average the two middle values (in this case 18 and 22) to get the median.