Dr Nick

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About Dr Nick

Levels Tought:
Elementary,Middle School,High School,College,University,PHD

Expertise:
Art & Design,Computer Science See all
Art & Design,Computer Science,Engineering,Information Systems,Programming Hide all
Teaching Since: May 2017
Last Sign in: 247 Weeks Ago, 1 Day Ago
Questions Answered: 19234
Tutorials Posted: 19224

Education

  • MBA (IT), PHD
    Kaplan University
    Apr-2009 - Mar-2014

Experience

  • Professor
    University of Santo Tomas
    Aug-2006 - Present

Category > Statistics Posted 10 Nov 2017 My Price 11.00

The lengths of pregnancies are normally distributed with a mean of 266 days and a standard deviation of 15 days.

 

1) The lengths of pregnancies are normally distributed with a mean of 266 days and a standard deviation of 15 days.

       a) Find the probability of a pregnancy lasting 307 days or longer.

       b) If the length of pregnancy is in the lowest 2​%, then the baby is premature. Find the length that separates premature babies       from those who are not premature.

2) 

Assume that the Richter scale magnitudes of earthquakes are normally distributed with a mean of 1.087 and a standard deviation of 0.562.

  1. Earthquakes with magnitudes less than 2.000 are considered​ "microearthquakes" that are not felt. What percentage of earthquakes fall into this​ category?
  2. Earthquakes above 4.0 will cause indoor items to shake. What percentage of earthquakes fall into this​ category?
  3. Find the 95th percentile.
  4. Will all earthquakes above the 95th percentile cause indoor items to​ shake

Answers

Dr Nick
(3)
Status NEW Posted 10 Nov 2017 11:11 AM My Price 11.00

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