Question

Calculate the range and the standard deviation for the set of numbers.

6,5, 1, 5, 8, 5, 3, 5, 4,7
The range is
(Simplify your answer.)

Can I please get help with this problem?

Answer 1

When time is short and you just want a rough estimate of the standard deviation, turn to the range rule to quickly estimate the standard deviation value. The standard deviation is approximately equal to the range of the data divided by 4. That's it, simple.