A group of students in a math class were surveyed and asked: “How many hours each week do you study your math?” The following data represent the responses: 10, 1, 5, 5, 6, 3, 7, 3, 1, 6, 1, 9, 2, 4, 3, 2, 3, 2, 1, 3, 8, 2, 1. The standard deviation is 3. a) Construct a dot plot (on graph paper). b) Is this a normal distribution, or is the curve left skewed or right skewed?

A group of students in a math class were surveyed and asked: “How many hours each week do you study your math?” The following data represent the responses: 10, 1, 5, 5, 6, 3, 7, 3, 1, 6, 1, 9, 2, 4, 3, 2, 3, 2, 1, 3, 8, 2, 1. The standard deviation is 3. a) Construct a dot plot (on graph paper). b) Is this a normal distribution, or is the curve left skewed or right skewed?

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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Several years ago, the state of California launched an aggressively advertisement campaign against smoking. We've interviewed students from 16 college campuses in California and recorded for each campus the percentage of students who claimed that they had encountered assay least one anti smoking advertisement on campus in the past month. Here are those percentages. 53 39 30 49 48 42 41 38 26 36 40 42 52 51 45 50 Construct a box and whisker plot for the data.
It is generally believed that there is a relationship between a college’s acceptance rate and its graduation rate. I wanted to know how strong this relationship is within the top universities in the country so I collected the graduation rate and acceptance rate data of a randomly selected sample of universities from all the top U.S. universities (with an acceptance rate at or below 30%). The data set is in Tab Q2 of the Excel data file. a.) Create a scatter plot between the two variables using Excel. Paste the plot here and format it into an APA-styled “figure” (see Assignment Guides for APA format).Be sure to submit the Excel file that you used to create the scatter plot. b) Calculate the mean and standard deviation for the two variables separately. c) Calculate the Z scores for all the scores of the two variables, separately.Tips: It may help to prevent error and to increase clarity if the process and/or the answers (z scores) are listed in a table format. d) Calculate…
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