Question 1 The bulk density of pima clay loam follows normal distribution with mean of 1.75 g/cm³ and standard deviation of 0.25 g/cm³. M a. Find the probability that a randomly selected sample of pima clay loam will have bulk density greater than 1.12 and less than 2.42 g/cm³. b. what a point has the property that only 20 % of the soil samples have bulk density this high or higher.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Question 1
The bulk density of pima clay loam follows normal distribution with mean of
1.75 g/cm³ and standard deviation of 0.25 g/cm³.
M
a. Find the probability that a randomly selected sample of pima clay loam will
have bulk density greater than 1.12 and less than 2.42 g/cm³.
b. what a point has the property that only 20 % of the soil samples have bulk
density this high or higher.
Transcribed Image Text:Question 1 The bulk density of pima clay loam follows normal distribution with mean of 1.75 g/cm³ and standard deviation of 0.25 g/cm³. M a. Find the probability that a randomly selected sample of pima clay loam will have bulk density greater than 1.12 and less than 2.42 g/cm³. b. what a point has the property that only 20 % of the soil samples have bulk density this high or higher.
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