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The pmf of the amount of memory X (GB) in a purchased flash drive is given as the following.
(a) Compute E(X). (Enter your answer to two decimal places.)
GB(b) Compute V(X) directly from the definition. (Enter your answer to four decimal places.)
GB2(c) Compute the standard deviation of X. (Round your answer to three decimal places.)
GB(d) Compute V(X) using the shortcut formula. (Enter your answer to four decimal places.)
GB2
Solve the equations using linear algebra
an order for an automobile can select the base model or add any number of 11 options. the random variable is the number
Level integer between 0 and 9, the compression level when writing. AllowNonCompressed logical. When reading, should non-compressed input be allowed?
Advertising coefficient is 200 and t stat is 1.75. Which of the following statements is an accurate interpretation of the situation when using an alpha of .10
A particular candidate claims she has the support of at least 60% of the voters in her district. A random sample of 150 voters yields 87 who support her. The candidate wishes to test her claim at the 0.05 level of significance.
A random samle of 12 college freshmen is obtained. The probability that exactly two of the 12 freshmen will not return for their sophmore year is?
When using past data, I have found that the proportion of items rejected by quality control personnel is about 3%. We normally make 5000 items per day. For a p chart, what are the upper and lower control limits?
one thousand raffle tickets are sold for 2.00 each. one grand prize of 800 and two consolation prizes of 100 each will
Setup Null and Alternate hypotheses to test if average amount of soda in each can is less than 32 oz. Test the hypothesis using a = 0.05. What can you conclude from all this?
If the researcher used an independent-measures design, then how many individuals were needed for the study and what are the df values for the F ratio?
Bougainvilleas, mean growth rate was 2.23 inches/week and sample standard deviation was 0.77 inches/week. Determine a 90% confidence interval for mean growth rate of all Bougainvilleas.
The MPG (Miles per Gallon) for a mid-size car is normally distributed with a mean of 32 and a standard deviation of .8. What is the probability that the MPG for a selected mid-size car would be less than 33.2?
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