According to a report, 71.9% of murders are committed with a firearm. (a) If 400 murders are randomly selected, how many would we expect to be committed with a firearm? (b) Would it be unusual to observe 312 murders by firearm in a random sample of 400 murders? Why? (a) We would expect to be committed with a firearm. (b) Choose the correct answer below. A. Yes, because 312 is greater than u + 2o. B. No, because 312 is between u - 20 and u + 20. O C. No, because 312 is greater than u + 2o. O D. No, because 312 is less than u - 2o. E. Yes, because 312 is between u - 20 and u + 20. O O O

According to a report, 71.9% of murders are committed with a firearm. (a) If 400 murders are randomly selected, how many would we expect to be committed with a firearm? (b) Would it be unusual to observe 312 murders by firearm in a random sample of 400 murders? Why? (a) We would expect to be committed with a firearm. (b) Choose the correct answer below. A. Yes, because 312 is greater than u + 2o. B. No, because 312 is between u - 20 and u + 20. O C. No, because 312 is greater than u + 2o. O D. No, because 312 is less than u - 2o. E. Yes, because 312 is between u - 20 and u + 20. O O O

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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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Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

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Question

According to a report, 71.9% of murders are committed with a firearm.
(a) If 400 murders are randomly selected, how many would we expect to be committed with a firearm?
(b) Would it be unusual to observe 312 murders by firearm in a random sample of 400 murders? Why?
(a) We would expect
to be committed with a firearm.
(b) Choose the correct answer below.
A. Yes, because 312 is greater than u + 20.
B. No, because 312 is between u - 20 and
H+ 20.
O C. No, because 312 is greater than p + 2o.
D. No, because 312 is less than u - 20.
E. Yes, because 312 is between u - 20 and u + 20.

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