MATH 533 Week 3 Discussion; Determining a Normal Distribution (Keller)
Week 3: Determining a Normal Distribution When trying to determine probabilities, one must first assess whether the variable would have a normal distribution. Using the tools from this course, what are some methods that could be used to determine whether a variable has a normal distribution? View Instructor posts View My Posts Search entries or author Filter replies by unread UnreadCollapse replies Expand replies SubscribedThis topic was locked Jan 23 at 11:59pm. • Collapse SubdiscussionEsther La Colombe Ngo Mbogmal RosaisEsther La Colombe Ngo Mbogmal RosaisJan 16, 2022Jan 16 at 5:45am Manage Discussion EntryHello everyone A normal distribution is one in which the values are evenly distributed both above and below the mean. A population has a precisely normal distribution if the mean, mode, and median are all equal. For the population of 3,4,5,5,5,6,7, the mean, mode, and median are all 5. Then, histogram, normal probability plot and boxplot methods could be used to determine whether a variable has a normal distribution. The symmetric shape of histogram conclude the data are normally distributed, the data fall around the straight line in normal probability plot follow normal distribution and there is no outlier present and box and whisker equal to the median in boxplot conclude data follow normal distribution. Reference: https://statisticsbyjim.com/basics/normal-distribution/ (Links to an external site.)(1 like) o Collapse SubdiscussionPenka MarinovaPenka MarinovaJan 18, 2022Jan 18 at 8:32pm Manage Discussion EntryDear students, Today, during our class discussion we found out that Q7 and Q8 from your HW this week require a little bit more attention. Let's discuss one of them here. Do not forget that you need to deal with the Standard Normal Distribution here, where the mean = 0 and the standard deviation = 1.
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