Infinite-dimensional vector space
Prove that the space P of all polynomials is an infinite-dimensional vector space. [Hint: mathematical induction may be useful here.]
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Please find the standard deviation and show your step-by-step method.
In a survey of 1430 undergraduate students, 1087 reported that they had one or more credit cards. Provide a 90% confidence interval for the proportion of all college students who have at least one credit card.
What is the value of y' when x = 3, if the equation of the regression line is y' = 23.1 - 3.8x ?
For a certain type of electronic component, the lifetime X (in thousands of hours) has an exponential distribution with mean u=3. What is the probability that a new component will last longer than 1000 hours? In other words, find P(X > 1).
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The freshness and overall quality of milk depend upon the type of packaging used. The manager of a dairy company is considering changing the packaging from cartons to plastic.
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