Stats NIE Hw 4

Stats NIE Hw 4 - Statistics I Professor Jun Nie Section 4-2...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Statistics I Professor Jun Nie Recitation: Tue 2-3:15 Section 4-2 4, 6, 8, 14, 22, 26 4. I have been on an elevator very many times, and have never gotten stuck between floors. Therefore the probability that the next time the elevator will get stuck the next time I ride it is zero, or very close to zero. 6. a) .5 b) .2 c) .01 8. a) 1 b) 0 c) .1 d) .5 e) .2 14. a) 831 / (831 + 18) = 0.979 b) .975 c) .025 22. The .04 probability that the treatment group would show improvement despite an ineffective drug indicates that it is very unusual for a person treated with ineffective drug to show improvement. This is because .04 is a very small probability, and that 4% of a normal distribution lies beyond the second standard deviation. 26. a) Brown blue ; Brown Brown ; blue blue b) .25 c) .75 Section 4-3 2, 8, 10, 14, 16, 18 2. The addition rule states that to find the probability of only one of two events occurring, you add up the probabilities and subtract the overlapping probability of them both occurring. 8. p(not A) = 1 – p(A) = 1 - .01 = .99
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 08/27/2008 for the course ECON V31.0018 taught by Professor Hall during the Spring '08 term at NYU.

Page1 / 3

Stats NIE Hw 4 - Statistics I Professor Jun Nie Section 4-2...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online