Sallyzodiac wrote:
The range for a list of measurements equals the greatest measurement minus the least measurement. The two lists of measurements, \(X\) and \(Y\), combined consist of 30 measurements with a range of 25. What is the range for the measurements in list \(X\)?
1) The range for the 12 measurements in list \(Y\) is 20.
2) List \(X\) consists of 18 measurements.
To get the range of the list X , we need the maximum value and the minimum value in the list.
From statement 1 , we know the range of 12 measurements in list Y . So , if the first measurement is 100 then the last measurement is 120. But we dont know anything about the maximum or the minimum value in the list Y.
From statement 2 also , we don't know anything about the maximum or the minimum value in the list X.
Taking both together , we still don't know anything about the maximum or the minimum value of the list X.
Option E is the answer.
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