6. A sample of 100 customers of Montana Gas and Electric resulted in the followingfrequency distribution of monthly charges.Amount ($)0-4950-99100-149150-199200-249Number124241334265a.Let A be the event that monthly charges are $150 or more. Find P(A).b. Let B be the event that monthly charges are less than $150. Find P(B).

a. The frequency distribution of monthly charges of a sample of 100 customers is given.

Answered: A sample of 100 customers of Montana…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A company is conducting a survey to determine how prepared people are for a long-term power outage, natural disaster, or terrorist attack. The frequency distribution on the right shows the results. Use the table to answer the following question. Response Very prepared Somewhat prepared Not too prepared Not at all prepared Not sure Frequency 252 956 What is the probability that the next person surveyed is very prepared? 589 340 69 ..... The probability the next person surveyed is very prepared is (Round to three decimal places as needed.)
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The following table gives the number of fatal work injuries categorized by cause from 2015 in a certain country. Cause Number of Fatalities Transportation accidents 2926 Assaults and violent acts 724 Contacts with objects and equipment 719 Falls Exposure to harmful substances or environments Fires and explosions Other. 820 406 125 21 Find the probability that a randomly chosen work fatality had the following cause. Assaults and violent acts
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