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How do you calculate mean, median, mode, and standard deviation?
What are percentile ranks, standard deviations, z scores, T scores, and Stanine scores?
How can you improve reliability and validity in testing?
What do results of achievement, aptitude, and diagnostic tests tell teachers?
How would you prepare students (and yourself) for taking standardized tests?
What are the strengths and weaknesses of alternative forms of assessment such as portfolios?
Suppose that X1 and X2 are Gaussian random variables with means µ1 and µ2 respectively. Assume that µ1 ≠ µ2. The variance for each of the two random variables is σ2. Find the value of x for which fx1(x) = fx2(x).
a man can row at max. speed of 0.9m/s relative to the water. he is at point A on a riverbank and wishes to reach the point B at the other bank which is 200m upstream from a point directly opposite at the point A. the river has straight parallel ba..
The parabola y= x^2+4 has two tangents which pass through the point (0,-2). One is tangent to the parabola at (a, a^2+4) and the other at (-a, a^2+4) where a is a certain positive number. The question is a=?
Find the percentage of members spends more than $140 in a year?
We apply Lanchester's model to the Battle of Trafalgar (1805), when a fleet of 40 British ships expected to face a combined French and Spanish fleet of 46 ship.
how is constructing an angle bisector similar
It usually takes John 3 hours longer to do the monthly payroll than it takes Peter. They start working on it together at 9am and at 5pm, they have 85% of it done.
Suppose $1000 is invested at a nominal annual interest rate of 3%. What is the balance after 4 years. (a) Assuming monthly compounding? (Give a formula with numbers plugged in, then use a calculator.)
Given the development of and history of e-commerce in the years from 1995 to 2012, what do you predict we will see during the next five years of e-commerce.
In three complete and well composed paragraphs, select an expert from the reading from 50 Shades of Digital Marketing and summarize their views. Do you agree or disagree with their point of view? Why?
Given two chickens in a flock, one of them is dominant. This defines the pecking order of the flock.
1. To the nearest square foot, what is the area of a circular rose garden that measures 28 feet through the center? 2. A sprinkler waters in a circular pattern, spraying water out a distance of 3.1 meters. How much lawn surface does the sprinkler w..
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