(d) P(x 2 20) (e) P(30 < x) (f) P(x not less than 10) (g) P(0 < x < 10 or 40 < x) (h) P(40 < x and 20 < x)
(d) P(x 2 20) (e) P(30 < x) (f) P(x not less than 10) (g) P(0 < x < 10 or 40 < x) (h) P(40 < x and 20 < x)
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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Question
Magnetic surveying is one technique used by archaeologists to determine anomalies arising from variations in magnetic susceptibility. Unusual changes in magnetic susceptibility might (or might not) indicate an important archaeological discovery. Let x be a random variable that represents a magnetic susceptibility (MS) reading for a randomly chosen site at an archaeological research location. A random sample of 120 sites gave the readings shown in the table below.
Transcribed Image Text:(d) P(x > 20)
(e) P(30 < x)
(f) P(x not less than 10)
(g) P(0 < x < 10 or 40 < x)
(h) P(40 < x and 20 < x)
Transcribed Image Text:Magnetic surveying is one technique used by archaeologists to determine anomalies arising from variations in magnetic susceptibility. Unusual changes in magnetic
susceptibility might (or might not) indicate an important archaeological discovery. Let x be a random variable that represents a magnetic susceptibility (MS) reading for a
randomly chosen site at an archaeological research location. A random sample of 120 sites gave the readings shown in the table below.
Magnetic Susceptibility Readings,
centimeter-gram-second x 10-6 (cmg
Magnetic
Susceptibility
10-6)
Number of
Estimated
Probability
36/120 = 0.30
48/120 = 0.40
12/120 = 0.10
18/120 = 0.15
6/120 = 0.05
Comment
Readings
"cool"
"neutral"
0<x< 10
36
10 <x < 20
20 < x < 30
30 < x < 40
40 < x
48
"warm"
12
"very interesting"
"hot spot"
18
For a site chosen at random, estimate the following probabilities.
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