Mean and Standard Deviation

Height of 50 oak trees were measured, but due to problems only partial results were obtained. it was found that 6 trees had a height of less than 9 metres, while 18 trees had a height of less than 15 metres. calculate mean and standard deviation of the heights of oak trees.

Numerical Analysis

See attached file for full problem description.

Numerical Analysis : Solving Systems of Linear Equations

Problems 4.1 1, 2, 3, 6, 7, 8, 9, 11, 15 and 16. (page 147) I attached few pages description. See attached file for full problem description.

Numerical Analysis : Solving Systems of Linear Equations

Problems 4.2 1, 2, 5, 16, 17, 19, 23, 24, 25, 30, 31, 32, 35 and 36. (page 159 - ) See attached file for full problem description.

Find the definition of the distribution of a data population. Find the statistic that measures the width of dispersion of the population data about its mean.

In this unit, you studied several measures of central tendency. By far the most frequently utilized of these measures is the mean of a population. Remember that the source of the data that you want to analyze always comes from what is called a population. If you are interested in the average high temperature in your area for the ...continues

Numerical Analysis : Pivoting and Constructing an Algorithm

Problems from Exercise 4.3, i need following questions to be answered 1,5,6,17,21,26,27,30,31, 35 36, 37. (page 180 -

Ordinary Differential Equations Fourth Order Runge Kutta Method

Question Use Runge-Kutta method of order four to approximate the solution to the given initial value problem and compare the results to the actual values. y'=e^(t-y) , 0 <=t <=1 , y(0)=1 with h = 0.5(Interval) Actual solution is y(t)= In((e^t+e-1). For full description of the problem, please see the attached question ...continues

What is the project's net present value? Based on this analysis, should the company proceed with the project?

A project will require an initial investment of $750,000 and will return $200,000 each year for five years. If taxes are ignored and the required rate of return is 9%, what is the project's net present value? Based on this analysis, should the company proceed with the project?

Accounting

Network Company requires four units of R2 for every unit of D2 that it produces. Currently, R2 is made by Network, with the following per unit costs in a period when 20,000 units were produced: Direct materials $ 6.00 Direct labor 2.50 Manufacturing overhead 5.60 Total $14.10 Variable manufacturing ov ...continues

Find the row echelon form of the given matrix.

Find the row echelon form (not the reduced row echelon form) of the 4 X 3 matrix whose rows are as follows: row 1: 1/3 1/4 1/5 row 2: 2/3 2/4 2/5 row 3: 3/3 3/4 3/5 row 4: 4/3 4/4 4/5