Posted by **Anonymous** on Thursday, January 12, 2012 at 10:06pm.

One operation of a mill is to cut pieces of steel into parts that will later be used as the frame for front seats in an automobile. The steel is cut with a diamond saw and requires the resulting parts to be within ±0.005 inch of the length specified by the automobile company. The data in the file Steel comes from a sample of 100 steel parts. The measurement reported is the difference in inches between the actual length of the steel part, as measured by a laser measurement device, and the specified length of the steel part. For example, the first value, 0.002, represents a steel part that is 0.002 inch shorter than the specified length.

a. Construct a percentage histogram.

b. Is the steel mill doing a good job in meeting the requirements set by the automobile company? Explain.

- statistic -
**Stat**, Thursday, January 12, 2012 at 10:08pm
nevermind above question, this question please:

Suppose there are three balls in a box. On one of the balls is the number 1, on another is the

number 2, and on the third is the number 3. You select two balls at random and without

replacement from the box and note the two numbers observed. The sample space S consists of

the three equally likely outcomes {(1, 2), (1, 3), (2, 3)}. Let X be the sum of the numbers on the

two balls selected.

Referring to the information above, the variance of X is... (EXPLAIN)

## Answer this Question

## Related Questions

- College Business Statistic - One operation of a mill is to cut pieces of steel ...
- math - A florist uses wire frames to support flower arrangements displayed at ...
- Calculus - A wire 7 meters long is cut into two pieces. One piece is bent into ...
- Calculus - A wire 4 meters long is cut into two pieces. One piece is bent into a...
- Calculus - Bruce has commissioned the construction of an open-top rectangular ...
- Math - I can't to get this problem. Perform the indicated operation 11 -6/7 -7 ...
- Calc - A wire 9 meters long is cut into two pieces. One piece is bent into a ...
- MINIMIZATION PROBLEM (CALC) - A wire 9 meters long is cut into two pieces. One ...
- MINIMIZATION PROBLEM (CALC) - A wire 9 meters long is cut into two pieces. One ...
- Geometry - A carpenter cut the top section of a window frame with a 37-degree ...

More Related Questions