Gabriel and Lucia took a road trip across the country. The room costs, in dollars, for their overnight stays are listed in the accompanying table. Whatdoes Chebyshev's theorem say about the number of the amounts that are within three standard deviations of the mean?Click the icon to view the room costs in dollars.There are at least observations that are within three standard deviations of the mean.(Round up to the nearest whole number.)Room Costs ($)92 106 118 170 184 181 D119 248 138 133 122 250X

K=3---standard deviations Total number=12

Answered: Gabriel and Lucia took a road trip…

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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Can someone please help with part C please? Thank you.
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Use the Student Unit Load data. Student Unit Load 3, 12, 6, 9, 6, 12, 15, 12, 7, 9, 3 Find the mean, median, mode, range, standard deviation and variance. Use the range rule-of-thumb to find significantly high and low scores. Write the 5-number summary. Find the z-score for x = 15 Is x = 15 unusual in terms of a z-score?
☐True ☐False The median is a better measure of central tendency when the data is skewed positively, but not when it’s skewed negatively.
Answer the last part. PLEASE PROVIDE TYPED ANSWERS TYPED ANSWERS.
Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING... x 0.9 A graph with a bell-shaped curve, divided into 2 regions by a line from top to bottom, on the left side. The region right of the line is shaded and labeled 0.9. The x-axis below the line is labeled "x". Question content area bottom Part 1 The indicated IQ score, x, is enter your response here. (Round to one decimal place as needed.)
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Briefly explain the difference between the concepts of mean and median and the advantages and disadvantages of both measures. Which variable has a larger standard deviation? Discuss what this statistic measures and what it tells you about this variable. If someone’s score is 1 standard deviation above the mean for study hours (+1 Z score), how many hours do they study? If a friend is 1 standard deviation below the mean for work hours (-1 Z score), how many hours do they work?
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One hundred teachers attended a seminar on mathematical problem solving. The attitudes of representative sample of 12 of the teachers were measured before and after the seminar. A positive number for change in attitude indicates that a teacher's attitude toward math became more positive. The twelve change scores are as follows. 4; 7; −1; 1; 0; 5; −2; 2; −1; 6; 5; −3 Part (a) What is the mean change score? (Round your answer to two decimal places.)
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