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shepuryov [24]
3 years ago
12

The median of the data set is 18 what number is missing 12, 17, 21, 13, 25

Mathematics
2 answers:
zysi [14]3 years ago
8 0
You need 19 because the median would be the middle of 17 and 19 which would be 18
denis-greek [22]3 years ago
5 0

Answer:

The missing number in the data set is 19

Step-by-step explanation:

The data set is given to be : 12, 17, 21, 13, 25

The median of the data set is given to is 18

Now, to find the median first arrange the data set in the increasing order

So, The data set would be : 12, 13, 17, 21, 25

Now, let the missing number be x

So, The total number of terms in the data set will be 6 that is even.

Now, insert the missing number in between

⇒ The data set will become : 12, 13, 17, x, 21, 25

Now, Median = Mean of 3rd and 4th term

⇒ 18 = Mean of 17 and x

⇒ 18 × 2 = x + 17

⇒ x = 19

Therefore, The missing number in the data set is 19

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