What is the marginal probability thatan individual in the sample is 41 to 65years old? *The table shows data about what type of phones that adults use.The respondents adults were divided into three groupsdepending on their age: 66 years and older, 41- 65 years, and 18- 40 years of old.SmartphoneOther Mobile Phone LandlineAge 18-40Age 41-65Age 65 or older102060304040203050

Here the total sample size , n = 60 + 30 + 10 + 40 + 40 + 20 + 20 + 30 + 50 = 300 The people who are…

Answered: What is the marginal probability that…

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 group of 80 students took a statistics Exam in the following scores were recorded68 84 75 82 68 90 62 88 76 93 73 79 88 73 58 93 71 59 58 51 61 65 75 87 74 62 95 78 63 72 66 96 79 65 74 77 95 85 78 86 71 78 78 62 80 67 69 83 76 62 71 75 82 89 67 58 73 74 73 65 81 76 72 75 92 97 57 63 68 83 81 82 53 85 94 52 78 88 77 71 Calculate median exam score
what is the mean of the data set?
Please help with question 11 with explanation Thank you
A consumer magazine wants to compare lifetimes of ballpoint pens of three different types. The magazine takes a random sample of pens of each time and records the lifetimes (in minutes) in the table below. Do the data indicate that there is a difference in the mean lifetime for the three brands of ballpoint pens? Brand 1 Brand 2 Brand 3 260 181 238 218 240 257 184 162 241 219 218 213
A random sample of 25 Berkeley College students was asked, “How many hours per week typically do you work outside the home?” Their responses were as follows: {0, 0, 15, 20, 30, 40, 30, 20, 35, 35, 28, 15, 20, 25, 25, 30, 5, 10, 30, 24, 28, 30, 35, 15, 15} a. Find the mean, the median and the mode of hours worked outside the home for the sample data. Show all your work to justify your answer. b. Use the above data to complete the following table summarizing the number of hours worked outside the home. Express the relative frequency as a percent. Class Tally Frequency Relative Frequency 0-10 11-20 21-30 31-40 Total c. Find the five-number summary of the hours worked outside of the home by the 25 Berkeley College students.
pls answer thankyou
What is the mode? Answer as an INTEGER. If necessary, round to the nearest integer. If it is not applicable or not available, type “na” instead.
The table below shows the scores of a group of students on a 10-point quiz. Test Score Frequency 3 4 4 2 5 2 6 3 7 1 8 4 9 2 10 1 The mean score on this test is: IncorrectThe median score on this test is: Show your work
The following are the annual incomes (in thousands of dollars) for 8 randomly chosen, U.S. adults employed full-time. 64, 52, 64, 86, 40, 49, 64, 73 (a) What is the median of this data set? If your answer is not an integer, round your answer to one decimal place. (b) What is the mean of this data set? If your answer is not an integer, round your answer to one decimal place. (c) How many modes does the data set have, and what are their values? Indicate the number of modes by clicking in the appropriate circle, and then indicate the value(s) of the mode(s), if applicable. zero modes one mode: two modes: and
The data in the following table show the association between cigar smoking and death from cancer for 137,273 men. Note: current cigar smoker means cigar smoker at time of death. Click the icon to view the table. (a) If an individual is randomly selected from this study, what is the probability that he died from cancer? (b) If an individual is randomly selected from this study, what is the probability that he was a current cigar smoker? Data Table (c) If an individual is randomly selected from this study, what is the probability that he died from cancer and was a current cigar smoker? (d) If an individual is randomly selected from this study, what is the probability that he died from cancer or was a current cigar smoker? Died from Did Not Die Cancer from Cancer Never smoked cigars 118,334 8,292 805 Former cigar smoker 69 Current cigar smoker 170 9,603 Print Done
Log 2 Log 2 Question-2 Suppose that, for a given region there is a 0.30 probability that the soil has a high copper content and a 0.23 probability that the mint will be present there. If the copper content is high, there is a 0.70 probability that the mint will be present. a. Find the probability that either a high copper content or the mint will be present. b. Find the probability that the copper content will be high given that the mint will not be present.
Suppose every student in a class is surveyed and it is reported that 75% of the class plans to take another math class. Is this an example of descriptive or inferential statistics? Explain

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