Mean: To find the mean, we first need to find the sum of all the ages and then divide by the total number of children.
Mean = (1*3 + 2*2 + 3*3 + 4*1 + 5*2 + 6*1) / 12 = (3 + 4 + 9 + 4 + 10 + 6) / 12 = 36 / 12 = 3
Median: To find the median, we first need to arrange the ages in ascending order: 1, 1, 1, 2, 2, 3, 3, 3, 4, 5, 5, 6.
Since there are 12 children, the median will be the average of the 6th and 7th numbers in the list, which are both 3.
Median = (3 + 3) / 2 = 6 / 2 = 3
Therefore, the mean age of the children at the party is 3, and the median age is also 3.
Ages of children at the party
3 kids-1
2 kids-2
3 kids-3
1 kid-4
2 kids-5
1 kid-6
What is the mean and median of the data shown in the line plot
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1 answer