Find mean and standard deviation for number
Several psychology students are unprepared for a surprise true/false test with 16 questions, and all of their answers are guesses.
Find the mean and standard deviation for the number of correct answers for such students
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Find the mean and the standard deviation for the number of times this letter will be found on a typical page of 1800 characters.
At 298K, S2F4(g) partially decomposes to SF2 (g). at equilibirum the partial pressure of SF2(g) is 8.4x10-2torr and the partial pressure of S2F4(g) is 36.8 torr.
Assume that a procedure yields a binomial distribution with n trails and the probability of success for one trial is p. Use the given values of n and p to find the mean and standard deviation.
Determine the final temperature in °C, the entropy change for the copper vessel and each of the liquid water masses, and the amount of entropy produced.
In a past election, the voter turnout was 53%. In a survey, 812 subjects were asked if they voted in the election. Find the mean and standard deviation for the numbers of voters in the groups of 812.
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A die is rolled n=4 times. Assume that the die is fair so that each face value on a single roll is equally likely. Let S2 denote the event that a face value of six appears twice in the 4 rolls.
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A 2016 survey of undergraduate students considered this further and found that compared with students that did not use cannabis at least once
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