At Burnt Mesa Pueblo, in one of the archaeological excavation sites, the artifact density (number of prehistoric artifacts per 10 liters of sediment) was 1.1. Suppose you are going to dig up and examine 50 liters of sediment at this site. Let r = 0, 1, 2, 3, … be a random variable that represents the number of prehistoric artifacts found in your 50 liters of sediment. a) Compute the probabilities that in your 50 liters of sediment you will find two prehistoric artifacts, three prehistoric artifacts, and four prehistoric artifacts. (Round your answers to four decimal places.) P(2)= ____ P(3)= _____ P(4)= ______ b) Find the probability that you will find fewer than three prehistoric artifacts in the 50 liters of sediment. (Round your answer to four decimal places.) c) Write out the formula for the probability distribution of the random variable r. (Use e, ?, and r in your answer.) P(r) = _______
At Burnt Mesa Pueblo, in one of the archaeological excavation sites, the artifact density (number of prehistoric artifacts per 10 liters of sediment) was 1.1. Suppose you are going to dig up and examine 50 liters of sediment at this site. Let r = 0, 1, 2, 3, … be a random variable that represents the number of prehistoric artifacts found in your 50 liters of sediment. a) Compute the probabilities that in your 50 liters of sediment you will find two prehistoric artifacts, three prehistoric artifacts, and four prehistoric artifacts. (Round your answers to four decimal places.) P(2)= ____ P(3)= _____ P(4)= ______ b) Find the probability that you will find fewer than three prehistoric artifacts in the 50 liters of sediment. (Round your answer to four decimal places.) c) Write out the formula for the probability distribution of the random variable r. (Use e, ?, and r in your answer.) P(r) = _______
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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At Burnt Mesa Pueblo, in one of the archaeological excavation sites, the artifact density (number of prehistoric artifacts per 10 liters of sediment) was 1.1. Suppose you are going to dig up and examine 50 liters of sediment at this site. Let r = 0, 1, 2, 3, … be a random variable that represents the number of prehistoric artifacts found in your 50 liters of sediment.
a) Compute the probabilities that in your 50 liters of sediment you will find two prehistoric artifacts, three prehistoric artifacts, and four prehistoric artifacts. (Round your answers to four decimal places.)
P(2)= ____ P(3)= _____ P(4)= ______
b) Find the probability that you will find fewer than three prehistoric artifacts in the 50 liters of sediment. (Round your answer to four decimal places.)
c) Write out the formula for the probability distribution of the random variable r. (Use e, ?, and r in your answer.) P(r) = _______
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