SD( X )

The random variable X has the probability density function ( ) [ ) 0.2 0.2 0, f x e?
= over ? . Compute the following quantities.


Answer: 5

Mathematics

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Solve.Tom Quig traveled 210 miles east of St. Louis. For most of the trip he averaged 60 mph, but for one period of time he was slowed to 10 mph due to a major accident. If the total time of travel was 6 hours, how many miles did he drive at the reduced speed?

A. 50 mi B. 40 mi C. 30 mi D. 25 mi

Mathematics

Provide an appropriate response.A periodic inventory accounting system requires a physical count of its inventory once a month.

A. True B. False

Mathematics

Use the rules for subtraction of measurements to subtract the second measurement from the first.        mm        mm                   

A. mm
B. mm
C. mm
D. mm
E. mm

Mathematics

Determine the sign and the absolute value of the number.

A. Sign: -; absolute value: 
B. Sign: +; absolute value: 
C. Sign: +; absolute value: 
D. Sign: -; absolute value: - 

Mathematics