Raymond B. answered • 02/22/20
Tutor
5
(2)
Math, microeconomics or criminal justice
You need more information, such as the standard deviation, the type of distribution, and the possible values.
Since you did this question 3 times varying whether it's less than or less than or equal, that suggests you're using integers in a discrete distribution. As the probability wouldn't change if it were a continuous distribution over all real numbers.
