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Suppose that 65% of high school students eat breakfast before going to school. A random sample of 500 high school students were surveyed. Let ?X ?= the number of high school students in a random sample of size 500 who eat breakfast before going to school.
1) Use a binomial distribution to estimate the probability that 300 or fewer high school students in the sample eat breakfast before going to school.
2) Justify why ?X? can be approximated by a Normal distribution.
3) Use a Normal distribution to estimate the probability that 300 or fewer high school students in the sample eat breakfast before going to school.
Find the cumulative distribution function.- Find the probability that at most four additional hours are slept.- Find the probability that at least two additional hours are slept per night.
Insider Advantage/Center for American Greatness reported the results of a recent poll (October 31) for the pending Michigan 2020 Presidential election race
Based only on this information, estimate the probability that you could ski at this resort after May 25 next year. What is the average closing day based on history?
the frequencies of different blood types of 200 people who volunteered at a plasma center is given in the table.blood
For the confidence interval obtained in the last exercise, what practical problem might have occurred regarding probability coverage?
A study was conducted to demonstrate the effectiveness of an investigational drug product in reducing the number of epileptic seizures in patients who have not been helped by standard therapy. Thirty patients participated in the study, with 15 ran..
Estimate a multiple linear regression model. (Negative values should be indicated by a minus sign. Round your answers to 2 decimal places.)
From which ancient sources did the concept of a "lost continent" of Atlantis originally derive? What reasons are there for questioning the historical accuracy.
The theory of finance allows for the computation of "excess" returns, either above or below the current stock market average.
A Rollercoaster's auditors estimate that the average daily loss from those illegally riding without tickets is never more than $200.
question during 9 surveys throughout the past decade the apartment vacancy rates in minneapolis in percentage were
Consider a jar containing 4 blue marbles, 9 green marbles, and 5 yellow marbles. Suppose each marble has an equal chance of being picked from the jar. Find:
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