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[DOC File]X ~ N(10,3)
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P(X ( 8) = P(X < 11.5) = FINDING PERCENTILES: FINDING X when we know the AREA TO THE LEFT . X ~ N(10, 2) invnorm (area to the left, (, ( ) 25th percentile 80th percentile FINDING X when we know the AREA TO THE RIGHT . X ~ N(10, 2) First find the area to the left. Then use the calculator. invnorm (area to the left, (, ( ) P(X ( k) = 0 .60 Find k ...
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[DOC File]STAT 211
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E(X/n) = E(X)/n, Using the rules of the expected value. = np / n =p If X~Binomial(n,p) then E(X)=np (Chapter 3) Example 2: A sample of 15 students who had taken calculus class yielded the following information on brand of calculator owned: T H C T H H C T T C C H S S S (T: Texas Instruments, H: Hewlett Packard, C=Casio, S=Sharp).
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[DOC File]AP Statistics
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Sep 07, 2011 · with parameters n and p. The possible values of X are the whole numbers from 0 to n. As an abbreviation, X is B (n,p). n = number of trials. p = probability of success. 1 – p = probability of failure. X = number of successes in n trials. P(X = k) = , where . for k = 0,1,2,…,n. Mean: μ = np Standard Deviation: σ = pdf – given a discrete ...
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[DOC File]Calculator Tip Sheet - kelly's math stuff
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To find P(x < #) for a binomial distribution: TI 83/older 84 Newer TI84. 2nd 2nd n = number of trials. DISTR DISTR p = probability success. binomcdf binomcdf # = largest value . n, p, # – 1 trials: n in x list. p: p. x value: # – 1 . Paste. Enter. Calculator Tip Sheet. Chapter 7. To find the probability of x being in a specified range:
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[DOCX File]Home - Houston County School District
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2ndVarsBinomialPDF(N,P,S) –this solves for 1 point on the curve –Solving for “exactly” one solution –for example, on a 10 question true false test, what is the probability of guessing exactly 4 right? (10,.5,4) N = number of trials. ... x+b” the calculator calls it “y= a.
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[DOC File]Binomial Distributions
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The function on the TI-83 calculator that finds the probability for an exact number of successes within n trials. The syntax is binompdf (n,p,x), where n is the number of trials, p is the probability of success for each trial, and x is the number of successes. Access this function by pressing 2nd [DISTR], and scrolling down to binompdf(.
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[DOC File]The Practice of Statistics
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Calculator Skills: binompdf (n, p, X ) binomcdf (n, p, X ) randBin (n, p, #trials) geometpdf (p, # obs for success) geometcdf (p, # obs for success) 8.1 The Binomial Distributions (pp.415-434) What are the four conditions for the binomial setting? In the binomial distribution, what do parameters n and p represent? What is meant by B(n, p) ?
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[DOCX File]University of Arizona
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P X ≤ k = BINOMDIST ( k , n , p , TRUE ) On TI calculator: Binomial . pdf. is . P X=k =binompdf(n,p, k) Binomial cdf is . P X ≤ k = binomcdf ( n , p , k ) Binomial Formula: (note: you do not need to know this for test. You can compute these probabilities on your calculator) T. he probability of . k . successes . in a binomial distribution ...
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N p x calculator