Stats: Modeling the World Nasta Edition Grades 9-12
Stats: Modeling the World Nasta Edition Grades 9-12
3rd Edition
ISBN: 9780131359581
Author: David E. Bock, Paul F. Velleman, Richard D. De Veaux
Publisher: PEARSON
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Chapter PIV, Problem 39RE

(a)

To determine

To find: the what quantity is estimated by the 1st product N.fp .

(a)

Expert Solution
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Explanation of Solution

Given:

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter PIV, Problem 39RE , additional homework tip  1

Calculation:

The first product, N # fpthe scope of the number of stars is given in the milky way that planets have.

It is estimated as:

  Nfp=(20020%)(40050%)Nfp=(200×20100)(400×50100)Nfp=(40)(200)

(b)

To determine

To find: the quantity is estimated by the product, N.fp.ne.fl

(b)

Expert Solution
Check Mark

Explanation of Solution

Given:

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter PIV, Problem 39RE , additional homework tip  2

Calculation:

The product, N # fp # ne # fl provides the scope of the number of stars with a suitable atmosphere in the milky way that has planets able to sustain earth-type life.

It is estimated as:

  Nfpnefl=(40200)(12)(1%100%)=(40×1×1%)(200×2×100%)=(40×1×1100)(200×2×100100)=(0.4400)

(c)

To determine

To Calculate:the probability is estimated by the product fl.fi .

(c)

Expert Solution
Check Mark

Explanation of Solution

Given:

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter PIV, Problem 39RE , additional homework tip  3

The probability determined by the product fl # fi is the probability that with the development of intelligence, life evolves on a planet.

(d)

To determine

To find: conditional probabilities are the factors in the formula and restate it in a way that makes the situation simple.

(d)

Expert Solution
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Explanation of Solution

Given:

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter PIV, Problem 39RE , additional homework tip  4

Based on the occurrence of a previous event or outcome, conditional probability is characterized as the probability of an event or outcome occurring. The conditional probability is determined by combining the probability of a preceding event with the modified probability of a good or conditional event.

 So, fc is the element which is a conditional probability in the formula.

Since the possibility of intelligent life developing radio contact depends on the likelihood of intelligent forms of life.

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