A learning management system allows users to take up to 4 different practice exams before taking the actual exam. Data iscollected from 40 users of the product regarding the number of practice exams each used.Number of Practice Exams Taken23.Frequency101393Based on the data, find the estimated probability (relative frequency) that a user will take more than one practice exam.Give your answer as a decimal. DO NOT ROUND YOUR ANSWER.The probability isusNextSavea近

The relative frequency is calculated asRelative Frequency=Corresponding FrequencyTotal Then,…

Answered: A learning management system allows…

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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Nicole has a popular blog about cooking and nutrition and regularly posts articles and videos. She has collected data about the length of time that viewers spent watching two of her recent videos. For each video, she recorded the amount of time (in minutes) that each of 102 viewers spent watching it. The histograms below show the distributions of the two data sets. Each histogram shows time (in minutes) on the horizontal axis and the number of viewers on the vertical axis. The means and standard deviations for the data sets are also given. Video 1 Video 2 25- 25- 20- 20- 15- 15- 10- 10- 5- 5- 0- 19.5 24.5 29.5 34.5 39.5 44.5 49.5 54.5 59.5 64.5 69.5 19.5 24.5 29.5 34.5 39.5 44.5 49.5 54.5 59.5 64.5 69.5 Video 1 mean: 52.05 minutes Video 2 mean: 44.25 minutes Video 1 standard deviation: 12.54 minutes Video 2 standard deviation: 8.16 minutes Nicole wants to use the Empirical Rule to make some approximations about both data sets. Unfortunately, it is appropriate to use the Empirical Rule…
Jason scored a 83 out of 100 Sarah scored a 80 out of 100 Sam scored a 75 out of 100 What is the percentile rank.
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Since 1994, the Best Roller Coaster Poll has been ranking the world's roller coasters. In 2013, Bizarro dropped to 4th after eaming the top steel coaster rank for six straight years. Data on 11 of the top steel coasters from this poll are presented in the accompanying lable What do these data indicate about the Length of the track and the Duration of the ride you can expect? E Click the icon to view the steel coaster data. Construct a scatterplot of the data. Choose the correct plot below. A. OB. O D. Q 240 240 240- 240 40 2000 6000 Length (A) 40 2000 6000 2 40 2000 6000 (2 Length () 40 2000 Length () 6000 ( Length (n) Find the correlation coefficient. Steel coaster data (Round to three decimal places as Маx Max Vert Duration Height Speed (sec) Length (ft) Initial Angle Rank Roller Coaster (mph) (degrees) Park 1 Expedition GeForce Holiday Park Six Flags Kings Dominion SF New England Hersheypark Cedar Point PortAventua Six Flags Mirabilandia Location Drop (ft) (ft) DE 184 75 188 74.6 82…
Carmen and Rosanna are two employees in an electronics store. The store manager has put an emphasis on increasing the number of applications for the store credit card. The manager randomly selected 24 weeks for each employee and recorded the number of completed applications for each week, which is provided in the samples below. Each employee completed 21 applications in one of the weeks selected. Use Excel to calculate each employee's z-score for completing 21 applications. Round your answers to two decimal places. Carmen Rosanna11 56 1115 613 185 1114 1416 521 208 1110 97 1416 1513 1310 619 2118 95 1817 310 126 1712 1214 419 1017 8
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