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Question: Suppose that in a gambling game, the probability of winning $4 is .3 and the probability of losing $2 is .7.
a. Write a table that gives the probability distribution for X = amount won in a single play. Losing $2 can be expressed as "winning" -$2.
b. Calculate the expected value of X = amount won on a single play.
c. Write a sentence that interprets the expected value of X in this situation.
in exercise 7 a sales manager collected the following data on xannual sales and yyears of experience. the estimated
Let A be an n X n matrix and C be a nonsingular matrix of order n X n. Show that A, C-1 AC, and CAC-1 have the same set of eigenvalues.
future electronics makes cd players. its research department found that the life of the laser beam device is normally
Using a level of significance of .01, is there evidence that the first year female high school teachers are receiving lower salaries? Fully explain your answer.
what is the critical f value for a sample of four observations in the numerator and seven in the denominator? use a
Estimate a probability that a seed from new plant will germinate a random sample of 3000 seeds, of those seeds 2430 germinated. What is the sample space for this problem and does it add up tp 1? are the outcome in the sample space equally likely?
Differentiate between descriptive and inferential statistics. What information do they provide? What are their similarities and differences? Your answer should be 175 words
Characteristics of residential properties - Construct a table that includes the summary statistics (mean, standard deviation, minimum and maximum) of all the variables. Explain briefly your findings
for a normal distribution curve with a mean of 17 and a standard deviation of 5 which range of the variable defines an
An experiment consists of rolling a special 18-sided die. All of the numbers, 1 through 18, are equally likely. Find the probability of each event.
as we have noted in previous chapters even a very small effect can be significant if the if the sample is large enough.
A researcher conducted a two-way ANOVA and found the following results for one of the main effects, F(2, 347) = 9.84, p = .005, ?2 = .010, observed power = .87.
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