A database is self-describing because the user maintains a record of the database structure outside the database itself

What is the 95% confidence interval width for a sample with a mean of 50 and a standard deviation of 14 based on 75 observations?

Two hundred simulation runs were completed using the probability of a machine breakdown from the table below. The average number of breakdowns from the simulation trials was 1.93 with a standard deviation of 0.20. No. of breakdowns per week Probability Cumulative probability 0 .10 .10 1 .25 .35 2 .36 .71 3 .22 .93 4 .07 1.00 A) (44.13, 55.87) B) (46.83, 53.17) C) (40.67, 59.32) D) (48.22, 51.78)

What can a couple seeking to get out of debt do?

A) Avoid future use of credit card debt, except on a emergency basis. B) Use savings to pay off current debt. C) See if their creditors will restructure their loans. D) Seek help from a reputable credit counselor. E) All of the above are correct.