lecture-13 - Normal Approximation to the Binomial The...

  • Carleton University
  • STAT 2606
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Suppose Xis a binomial random variable, where nis the number of trials, each having a probability of success If nand pare such that np5 and n(1 p) 5, then Xis approximately normal with and 1.Suppose that 25% of all students at a large public university receive financial aid. Let Xbe the number of students in a random sample of size 50 who receive financial aid. What is the probability that at most 10 students receive aid? p
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