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20b(4b3)3
Find fractional notation for the ratio 1.6 to 9.8
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Find the solution of the following Differential Equations. xdy−ydxx2=0
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Weaknesses of Wald confidence interval for binomial distributionA survey samples 1000 people, among which 500 say they will vote for A, 400 for B e 100 for C. Calculate a confidence interval for the proportion of people that will vote for A. What are the major weaknesses of the confidence interval you just calculated?Let An∼Binom(n,p). By the CLT,n(A―n−p)x→{d}N(0,p(1−p))hence np(1−p)(A―n−p)x→{d}N(0,1)Since p is unknown, we approximate it with A―n. It follows that, at 1−α confidence,p∈A―n±z1−α2A―n(1−A―n)nSince this confidence interval relies on the CLT, it gives poor results when n is small or p is very close to 0 or 1. But this is not the case here, as n=1000 and A―n=0.5, so I fail to see what weaknesses the question is talking about?
For f ( t ) = ( 1 2 t - 3 , t e t ) what is the distance between f ( 0 ) and f ( 1 ) ?
To prove: The congruency of △RKM=∼△OMK. Given information: The following information has been given ∠MRK=∠KOM=90∘ ∠RKM=∠OMK KM is the common chord
Solve simultaneous logarithmic equations with different bases?How do I solve these simultaneous equations? 2 l o g x y + 2 l o g y x = 5 x y = 8I've tried to convert the first formula to fraction form and continue from there, but I can't seem to get anywhere. I've tried to do x = 8 / yand substitute to the first equation, but I still can't seem to solve this. How do I go about in solving these types of equations?
Solve the equation over the complex numbers. 5 x 2 − 6 x + 5 = 0
A function f is define f(x)=-x^2+x+2
(a) express f in standard form
(b) sketch the graph of f
(c) find the maximum value of f
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