A statment that could not be true include the following: A. The missing number is 11
In Mathematics and Statistics, a range is the difference between the highest number and the lowest number contained in a data set.
In Mathematics and Statistics, the range of a data set can be calculated by using this mathematical expression;
Range = Highest number - Lowest number
From the given data set, we have:
Range = 18.
Lowest number = 12.
Highest number = 30
By substituting, we have:
Range = 30 - 12
Range = 18
Assuming the missing number is 11, it means that the lowest number becomes 11 and then, the range would have to change from 18 to 19;
Range = 30 - 11
Range = 19 (False).
Complete Question;
On the board, your teacher shows an example of finding the range.
One of the numbers is erased, leaving what is shown.
Which of the following could NOT be true?
A: The missing number is 11
B: The missing number is 20
C: The missing number is 25
D: The missing number is 30