5.84 Blood diamonds. According to Global Research News (Mar. 4, 2014), one-fourth of all rough diamonds produced in the world are blood diamonds, i.e., diamonds mined to finance war or an insurgency. In a random sample of 700 rough diamonds purchased by a diamond buyer, let x be the number that are blood diamonds. a. Find the mean of x. b. Find the standard deviation of x. c. Find the z-score for the value x = 200. d. Find the approximate probability that the number of the 700 rough diamonds that are blood diamonds is less than or equal to 200.
5.84 Blood diamonds. According to Global Research News (Mar. 4, 2014), one-fourth of all rough diamonds produced in the world are blood diamonds, i.e., diamonds mined to finance war or an insurgency. In a random sample of 700 rough diamonds purchased by a diamond buyer, let x be the number that are blood diamonds. a. Find the mean of x. b. Find the standard deviation of x. c. Find the z-score for the value x = 200. d. Find the approximate probability that the number of the 700 rough diamonds that are blood diamonds is less than or equal to 200.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:5.84 Blood diamonds. According to Global Research News
(Mar. 4, 2014), one-fourth of all rough diamonds produced
in the world are blood diamonds, i.e., diamonds mined to
finance war or an insurgency. In a random sample of 700
rough diamonds purchased by a diamond buyer, let x be the
number that are blood diamonds.
a. Find the mean of x.
b. Find the standard deviation of x.
c. Find the z-score for the value x = 200.
d. Find the approximate probability that the number of
the 700 rough diamonds that are blood diamonds is less
than or equal to 200.
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