Arandom variable x is uniformly distributed over the interval (-4, 6). find the standard deviation of x. (note: uniform distribution is a distribution where the pdf value is the same across all x values)

The standard deviation of x is 2.8867

Step-by-step explanation:

The standard deviation of variable x that follows a uniform distribution is calculated as:

Where (a,b) is the interval where x is defined.

So, replacing a by -4 and b by 6, the standard deviation is:

$20.01

step-by-step explanation:

the sale price is (1.00 - 0.77)($87), or 0.23($87), or $20.01.