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1) A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 30.
Following are the American College Test (ACT) scores attained by the 25 members of a local high school graduating class:
21
24
23
17
31
19
20
25
16
28
14
18
Find P99, P90, and P80 for the ACT scores. [Hint: Use nk/100 to find the location in the ordered data for each percentile.] All work must be show in order to get your assignment graded
2) How is a "discrete" variable different from a "continuous" variable? Please give one example of each, and describe how these examples differ from one another.
Identify what makes flipping a coin and keeping track of tails a binomial experiment .
3) If the random variable z is the standard normal score and a > 0, is it true that P(z < -a) = P(z > a)? Why or why not?Then find the z-score for the standard normal distribution where:
Area = 0.32 in the left tail
Describe the different type of taxes and their rates in Spokane WA.
Construct a graph showing supply and demand in the tablet case market and how are the laws of supply and demand illustrated in this graph? Explain your answers.
The slopes in the direction field are all identical along horizontal lines and new solutions can be generated from old ones by time shifting (i.e., replacing y(t) with y(t - t0).
Discrete-time model for an economy
A theater owner has found that 6% of patrons don't show up for performance that they bought tickets for. If theater has 100 seats, determine the probability that 8 or more patrons won't show up for sold-out performance.
What is the probability that this string is a mirror image of itself and compute the probability that all of the balls in the sample are the same color
How much money will Dave and Jane raise for charity
What equation will generate the number of tiles for a height of n? Use the diagrams (you can expand them) and the table to show how you arrived at your equation.
Find the Laplace transform and also find the inverse Laplace transform
What general conclusions can you reach about the relationship between the relative sizes of the two masses and the corresponding reduced mass?
Matrix multiplication is distributive. That is, for any four matrices A, B, C and D of appropriate size, the following two matrix multiplication equalities
Behaviour of the functions at their end and midpoints points to suggest features that increase the convergence and those that are bad for convergence.
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