1. What would be a reasonable guess for the distribution of each of the following.Also, please state whether the distribution is a discrete-type or a continuous-type distribution.(a) The number of cars that pass by my house in the next 15 minutes.(b) The number of red cars among the next 10 cars that pass by my house.(c) The length of time from now until a car passes by my house.(d) Whether or not the next car that passes by is red.(e) The location of the tire valve on the circle formed by the right fronttire of my car. Assume that 0 means the tire valve is as close to thefront of the car as possible. If the tire valve is at the top of the car, youhave various choices: 90 degrees, π/2 radians, or 1/4 turn. (For thisproblem, also give the parameters of the distribution.)(f) The number of cars that pass by my house until a red car passes by.

As per the Bartleby guidelines we have to solve the first three subparts and the rest can be…

Answered: 1. What would be a reasonable guess for…

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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5. Which of the following statements is not true? a. In symmetric distributions, the mean and the median will be approximately equal. b. When looking at the shape of the distribution, a distribution is skewed to the left when the left tail is shorter than the right tail. c. A stem-and-leaf display contains all the information needed to create a box plot. d. Relative frequencies are particularly useful when comparing the frequency distributions of two different size sets of data. e. The histogram of a normal sample should have a distribution shape that is not skewed. 6. Which of t a. standard deviation b. interquartile range c. median d. coefficient of variation e. all of the above are measured in the same units as the data. following descriptive statistics is not measured in the same units as the data? 7. A fair penny is tossed three times. The probability of observing a heads two times in a row is a. 1/3 b. 2/3 c. 1/4 d. 3/8 e. 1/2 8. Consider the following variable: The difference…
(a) Identify the shape of the distribution, and (b) determine the five-number summary. Assume that each number in the five-number summary is an integer. 0 10 20 a. Choose the correct answer below for the shape of the distribution. A. The distribution is roughly symmetric. B. The distribution is skewed left. C. The distribution is skewed right. D. The shape of the distribution cannot be determined from the boxplot. b. The five-number summary is \,\, \0
The average final exam score for the statistics course is 79%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is lower. The final exam scores for the 13 randomly selected students who were glven the colored pens are shown below. Assume that the distribution of the population is normal. 87, 58, 66, 70, 71, 72, 90, 83, 60, 63, 70, 89, 60 What can be concluded at the the a = 0.05 level of significance level of significance? a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses would be: Hạ: [pv|V| = H: [uvv # C. The test statistic t v (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is
Jear 14. Each year the college gives away T-shirts to new students during freshman orientation. The students are allowed to pick the shirt sizes that they want. To determine how many of each size shirt they should order, college officials look at the distribution from last year. The following table shows the distribution of shirt sizes selected last year. Size f 27 48 136 XL 120 XXL 39 a. What kind of graph would be appropriate for showing this distribution? b. Sketch the frequency distribution graph.
The average final exam score for the statistics course is 75%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is different. The final exam scores for the 13 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 75, 70, 86, 92, 71, 82, 89, 74, 90, 64, 89, 80, 71 What can be concluded at the the a 0.05 level of significance level of signtficance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ?vSelect an answerv H1: ?vSelect an answerv C. The test statistic ?v = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ?v a f. Based on this, we should Select an answerv the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the population mean is not significantly different from 75 at…
The following diagram is an example of a positively skewed frequency distribution. The bin with the highest distribution is on the right O True O False T x x
The average final exam score for the statistics course is 74%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is lower. The final exam scores for the 12 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 51, 86, 77, 86, 66, 59, 66, 76, 55, 59, 57, 80 What can be concluded at the α = 0.10 level of significance? For this study, we should use Select an answer t-test for a population mean z-test for a population proportion H0:H0: ? μ p Select an answer = ≠ > < H1:H1: ? p μ Select an answer = > < ≠ The test statistic ? t z = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.)
Is it possible for the 50th percentile of a distribution to be equal to the 60th percentile? Why or why not? A. No, because you won’t get the same result multiplying by 50 as you do by 60. B. No, because there will always be some values of the distribution in between the 50th and 60th percentiles. C. Yes, this can happen if the distribution is uniform. D. Yes, this can happen if there are many members of the population with the same value.
A researcher who studies mental health is interested in the length of time (in days) that a patient stays in the hospital after they have presented to emergency having suicidal ideation. The researcher follows the first 30 patients during the month of January and follows them until each one of them is released. Below is the histogram of the data obtained from the 30 patients. 1. What is the shape of this distribution and please construct a frequency table. Given the shape and type of data, which measure of central tendency would you be more likely to report? Why?
(a) Identify the shape of the distribution, and (b) determine the five-number summary. Assume that each number in the five-number summary is an integer. 10 - y - .. O D. The shape of the distribution cannot be determined from the boxplot. b. The five-number summary is | || ||||
The following distribution gives the number of hours spend by 50 students to do their task in a week after attending a synchronous class. NO. OF STUDENTS BOUNDARIES CLASS HOURS CLASS MARK 1-4 19 -4.5 4.5- 15-8 12 9-12 14 - 12.5 13-16 11 12.5 - 16.5 16.5- 17-20 4

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