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List A consists of the numbers {2, 9, 5, 1, 13}, and list B consists of the numbers {7, 4, 12, 15, 18}. If the two lists are combined, what is the median of the combined list?

8
0
0

A
8

Combine the 2 sets provided, and organize them in ascending order: {1, 2, 4, 5, 7, 9, 12, 13, 15, 18}.

Since there are an even number of items in the resulting list, the median is the average of the two middle numbers.

Median = (7 + 9) รท 2 = 8.

Explaination

Recall that the median of a set of data is the value located in the middle of the data set. In the case of a data set that contains an even number of numbers, the median is the average of the two middle numbers. Combine the 2 sets provided, and organize them in ascending order: {1, 2, 4, 5, 7, 9, 12, 13, 15, 18}.

Since there are an even number of items in the resulting list, the median is the average of the two middle numbers.

Median = (7 + 9) รท 2 = 8.

B 5

C 7

D 9

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