suppose that consumer usage time of computers in the public library is uniformly distributed with a minimum of 20 minutes and a maximum of 80 minutes. what is the standard deviation of the distribution

17.32 minutes

Step-by-step explanation:

The standard deviation for a uniform distribution is:

If a = 20 minutes and b = 80 minutes, the standard deviation is:

The standard deviation of the distribution of consumer usage time of computers in the public library is 17.32 minutes.

87%

step-by-step explanation:

apex answer

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.