11 Jun 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
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