500 participants were asked what coping method they use to overcome poor mental health. The results are listed in the table below. Age Group Method Total Exercise Mindfulness Activity Medication Therapy Child 20 85 5 3 113 Adolescent 80 52 7 14 153 Adult 100 38 23 73 234 Total 200 175 35 90 500 What is the probability that a randomly selected participant uses a mindfulness activity given that they are an adolescent

500 participants were asked what coping method they use to overcome poor mental health. The results are listed in the table below. Age Group Method Total Exercise Mindfulness Activity Medication Therapy Child 20 85 5 3 113 Adolescent 80 52 7 14 153 Adult 100 38 23 73 234 Total 200 175 35 90 500 What is the probability that a randomly selected participant uses a mindfulness activity given that they are an adolescent

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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The National Longitudinal Study of Adolescent Health interviewed several thousand teens (grades 7 to 12). One question asked was “What do you think are the chances you will be married in the next 10 years?” Here is a two-way table of the responses by gender: Opinion Female Male Almost no chance 103 94 Some chance but probably not 146 175 A 50-50 chance 428 522 A good chance 738 691 Almost certain 1170 776 How many individuals are described in this table? How many females were among the respondents? The percent of females among the respondents was about %. Your percent from the previous exercise is part of the marginal distribution of sex. the conditional distribution of sex among adolescents with a given opinion. the marginal distribution of opinion about marriage. What percent of females thought that they were almost certain to be married in the next 10 years?% Your percent from the previous exercise is part of the conditional distribution of sex among…
The National Longitudinal Study of Adolescent Health interviewed several thousand teens (grades 7 to 12). One question asked was “What do you think are the chances you will be married in the next 10 years?” Here is a two-way table of the responses by gender: Opinion Female Male Almost no chance 120 93 Some chance but probably not 149 167 A 50-50 chance 462 511 A good chance 746 704 Almost certain 1192 758 How many individuals are described in this table? How many females were among the respondents? The percent of females among the respondents was about %. Your percent from the previous exercise is part of the marginal distribution of opinion about marriage. the conditional distribution of sex among adolescents with a given opinion. the marginal distribution of sex. What percent of females thought that they were almost certain to be married in the next 10 years?% Your percent from the previous exercise is part of the conditional distribution of opinion…
You want to see if a card dealer is favoring one suit over another. You observe the dealer pick a card, put it back in the deck, shuffle, and then repeat the process 300 times. The results are displayed in the table below. Use an a = 0.05 significance level. a. Complete the rest of the table by filling in the expected frequencies: Frequencies of Suits Dealt Outcome Frequency | Expected Frequency Spades 88 75 Hearts 66 75 Diamonds 81 75 Clubs 65 75 b. What is the correct statistical test to use? | Goodness-of-Fit| c. What are the null and alternative hypotheses? Họ: O The distribution of suits is not uniform. O The suits and cards are independent. The suits and cards are dependent. The distribution of suits is uniform. H : The distribution of suits is not uniform. O The suits and cards are dependent. The suits and cards are independent. The distribution of suits is uniform. d. The degrees of freedom = e. The test-statistic for this data = (Please show your answer to three decimal…
Verdadero=true falso=false
The contingency table below shows the results of a survey of video viewing habits by age. Video Viewing Platform Preferred Viewer AgeMobile/Laptop Device TV Screen Row Total18–34 32 35 67 35–54 11 11 22 55+ 4 7 11 Column Total 47 53 100 Find the following probabilities or percentages: (e) Percentage of viewers who are 35–54 or prefer videos on a mobile or laptop device. Percentage of viewers %
USING EXCEL (provide Excel screenshots) Thank you! Suppose a researcher is interested in carrying out a phase II clinical trial in order to assess the effectiveness of four different doses of an investigational new drug. Assume the following table represents the summary statistics revolving around the number of adverse events in the four fasting glucose among groups. Fasting Glucose Treatment Group 124 1 124 1 125 2 134 2 138 2 137 2 136 2 119 1 124 3 120 1 116 3 124 3 127 3 129 1 A) Calculate the MSW. B) Calculate the MSB.
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Four scenarios of statistical studies are given below. Decide which study uses a population parameter. Answer O Lakeside Family Dentistry reported that 6 of the 15 patients who came in for a regular cleaning one day had at least one cavity. O As part of her senior project, Kaisa asked 84 of her classmates if they voted in the last presidential election. 39 said yes. O of 351 dog owners who were surveyed, 70 reported owning two dogs. The average finish time for the Ironman, Kona was 11:32 for the 1883 finishers, with an average swim time of 1:14, an average bike time time of 4:14.
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A researcher is interested in examining the relationship between ACT scores and college GPA. Participant ACT ?̅ = 29.67; ?? = 3.39 GPA ?̅ = 3.30; ?? = .52 1 24 2.75 2 28 3.25 3 29 3.50 4 35 3.75 5 34 4.00 6 30 3.80 7 29 2.60 8 27 2.68 9 31 3.36 Predict the GPA from an ACT score of 22. Predict the GPA from an ACT score of 25. Find the standard error of the estimate. What does this tell you about your predictions?

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Age Group	Method	Total
Exercise	Mindfulness Activity	Medication	Therapy
Child	20	85	5	3	113
Adolescent	80	52	7	14	153
Adult	100	38	23	73	234
Total	200	175	35	90	500