Math problem

Please show all calculations and steps.

1. Find the standard deviation of the following cost of products of this set of data:

  $60,  $58, $62, $67, $48,  $51, $72, $70

DATA	DATA – MEAN	(DATA – MEAN)²

0. Salaries for the research and development department are given as $48,345; $27,957; $42,591; $19,539; $32,450; and $37,574.  Find the mean, the median, and the mode of the salaries.

0. The data shows the total number of employee medical leave days taken for on-the-job accidents in the first six months of the year: 11, 2, 19, 3, 20, 11.  Find the standard deviation. (Round the decimal to the nearest hundredth as needed.)

0. A business loan of $12,000 is taken out for three years at an interest rate of 11% compounded annually.  Find the future value and the compound interest paid. Then compare the compound interest with a simple interest loan for the same loan.

0. You are called upon to make a business decision for your company.  Find the compound interest on a year investment of $1,000. Which would pay more interest:

A.  4% compounded quarterly

B.  4% compounded annually