According to a report, 56.9%of murders are committed with a firearm. (a) If 100 murders are randomly selected, how many would we expect to be committed with a firearm? (b) Would it be unusual to observe 70 murders by firearm in a random sample of 100 murders? Why?

According to a report, 56.9%of murders are committed with a firearm. (a) If 100 murders are randomly selected, how many would we expect to be committed with a firearm? (b) Would it be unusual to observe 70 murders by firearm in a random sample of 100 murders? Why?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.5: Interpreting Data

Problem 1C

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Question

According to a report, 56.9% of murders are committed with a firearm.
(a) If 100 murders are randomly selected, how many would we expect to be committed with a firearm?
(b) Would it be unusual to observe 70 murders by firearm in a random sample of 100 murders? Why?
(a) We would expect
to be committed with a firearm.
(b) Choose the correct answer below.
O A. Yes, because 70 is between u - 2o and u + 20.
B. No, because 70 is between u - 20 and
+ 20.
C. Yes, because 70 is greater than u + 20.
D. No, because 70 is greater than
+ 20.
E. No, because 70 is less than u - 20.

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According to a​ report, 56.9​%of murders are committed with a firearm. ​(a) If 100 murders are randomly​ selected, how many would we expect to be committed with a​ firearm? ​(b) Would it be unusual to observe 70 murders by firearm in a random sample of 100 ​murders? Why?

According to a report, 56.9%of murders are committed with a firearm. (a) If 100 murders are randomly selected, how many would we expect to be committed with a firearm? (b) Would it be unusual to observe 70 murders by firearm in a random sample of 100 murders? Why?