The diameter of a rivet (in mm) is a random variable with probability density function







a. What is the probability that the diameter is less than 12.5 mm?

b. Find the mean diameter.

c. Find the standard deviation of the diameters.

d. Find the cumulative distribution function of the diameter.

e. The specification for the diameter is 12.3 to 12.7 mm. What is the probability that the specification is met?




Trades & Technology

You might also like to view...

_____ is an example of a corm-producing plant

A) corcus B) colchicum C) gladiolus D) all of the above

Trades & Technology

Which of the following statements is LEAST-Likely true?

A. Automotive fuses are rated according to voltage. B. Occasional fuse failure can be due to a defective fuse. C. You can replace a fuse or reset a circuit breaker, but this does not fix the problem that caused the overload. D. A fuse failure might only occur one time, but it could also be caused by an existing electrical problem that must be fixed.

Trades & Technology

Which chemical is used to strengthen lead grids in maintenance-free batteries?

A) Copper B) Calcium C) Antimony D) None of these

Trades & Technology

The weight of one square foot of steel one inch thick is 40.80 lbs. A steel bar 1/2 inch thick × 6 inches × 8 feet long is priced at $.95 per pound. What is the cost of the bar?

A) $ 136.80 B) $ 38.76 C) $ 273.60 D) $ 77.52

Trades & Technology