Open Middle®
Directions: Using the digits 0 to 9, at most two times each, place a digit in each box to make a valid transformation from the original normal distribution.
Hint
Think about how adding a number moves the center without changing the distances between values.
Answer
There are many answers. One is an original mean of 0 and standard deviation of 1, then an addition of 2 resulting in a new mean of 2 and the same standard deviation of 1.
Source: Owen Kaplinsky