Module 2 Midterm 1

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Arizona State University *

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280

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Statistics

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Apr 3, 2024

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Module 2: Midterm 1 EGR 280 Instructions Several questions on this exam require you to calculate numerical answers. To increase the probability that your answers will be correctly graded by Canvas, round—do not truncate—your answers to 3 digits to the right of the decimal point. If you are using a spreadsheet, you can set it to display 3 digits to the right of the decimal point; this will automatically round the value for you. Some problems may require you to download a data file saved in a .csv format; you can download the .csv file by right clicking on the link to the file (on a Windows PC) or holding down the control key and clicking on the link to the file (on a Mac). This exam is open book, open notes. You may use any class materials, your previously submitted homework assignments, or material that you find on the web. This exam is to be purely an individual effort; you cannot collaborate with anyone else in working this exam. Collaboration would include working with other students in the class, posting a question to an online forum or discussion group for help, or seeking help from any individual other than the course instructor in any way. Your test will not be graded unless you agree to the following statement on academic honesty. | certify that this submission consists entirely of my work. | have neither requested nor accepted help from anyone in doing this work. | have not given help to anyone else for this test. | understand that collaborating with anyone else in any form on this test is considered academic dishonesty and will be sanctioned as described in the Student Academic Integrity Policy.

Question 1 1/1pts Graphical Representations of Data The data below contains a random sample of values. 0.25 157 0.5 69 0.75 41 1 43 1.25 36 1.5 29 1.75 30 2 36 2.25 30 2.5 28 2.75 27 3 17 3.25 14 3.5 25 3.75 23 .0 ©O5 10 15 20 25 30 35 40

Question 2 1/1pts Probability A random variable X has the followingprobabilities: P(X < 6)= 0.35, P(X < 8) = 0.45,and P(X <12) = 0.90. Compute P(8 < X <12) 0.45 Question 3 1/1pts Inverse Normal Distribution X is normally distributed with a mean of -7.12 and a standard deviation of 1.32. Find the value of x that solves P(X > x) = 0.20 -6.01 Question 4 1/1pts Central Limit Theorem X1, X2, ... Xa0 is a random sample from a distribution withmean p = 6.10 and variance 6% = 4.11. Find P(5.83 < X< 6.34). 0.573

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Related Questions

Thank you, but would the first column on the histogram not be at a frequency of 3? Would you please now answer the remaining part of the question. Thanks for your help

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