The table below summarizes results from a study of people who refused to answer survey questions. A pharmaceutical company is interested in opinions of the elderly. What is the probability that the selected subject is someone 60 and over who responded? Age 18-21 22-29 30-39 40-49 50-59 60 and over 199 60 242 135 38 Responded 70 252 133 Refused 14 23 36 29 The probability that the selected subject is someone 60 and over who responded is (Round to three decimal places as needed.)

The table below summarizes results from a study of people who refused to answer survey questions. A pharmaceutical company is interested in opinions of the elderly. What is the probability that the selected subject is someone 60 and over who responded? Age 18-21 22-29 30-39 40-49 50-59 60 and over 199 60 242 135 38 Responded 70 252 133 Refused 14 23 36 29 The probability that the selected subject is someone 60 and over who responded is (Round to three decimal places as needed.)

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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The dataset below is based on a survey of 100 randomly selected travelers who were asked, “How many trips per year do you typically take?” 2 or Fewer 3 to 5 Trips 6 to 8 Trips 9 or More Trips Male 17 10 20 3 Female 19 21 8 2 What is the probability that a randomly selected survey participant is male or takes two or fewer trips per year? Group of answer choices 0.36 0.69 0.86 0.17 0.18
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The manager of an ice cream shop decides to track the purchases of ice cream throughout the day. The data is displayed on the two-way frequency table shown. Vanilla Chocolate Total Adult 52 41 93 Child 26 105 131 Total 78 146 224 Part A: What is the probability of a customer ordering vanilla ice cream given they are an adult, or P(vanilla | adult)? Round to the nearest hundredth. [ Select] Part B: What is P(child | chocolate)? [ Select] Part C: What must be true to make the events of "the customer being a child" and "ordering chocolate ice cream" independent? [ Select ]
Residents of certain regions were asked about their thoughts on national defense spending. The results are represented in the table below. Northeast Southeast Midwest West Increase defense spending 240 450 318 190 Keep spending the same 423 240 215 119 Decrease defense spending 324 240 365 344 What is the empirical probability that an individual desires decreased defense spending, given that they live in the Midwest? Answers should be percentages correct to two decimal places
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