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Review - rules for rounding . Always try to not round until the end of a problem. Rule of thumb give answers one decimal place
- Review - rules for rounding . Always try to not round until the end of a problem. Rule of thumb give answers one decimal place larger than original data. For example, the average of 5 & 8 would be 6.5. What would the average of 4.6, 3.7, 8.5 be?
- What would be the average of the following numbers 11, 13, 17? what would be the standard deviation?
- Using the data from the class survey -Label the data in each column as nominal, ordinal, interval and explain why for example column A - hair color is nominal because the data is color and color can not be ....
- Calculate the average # of hours taken by all students & standard deviation
- Calculate the average # of hours taken by men & the standard deviation for men
- Calculate the average # of hours taken by women and the standard deviation for women
- Which group is more dispersed? Justify your answer using the statistics you collected
- Create a cumulative frequency table on the number of hours taken, try to create 4 rows.
- GPA - your GPA can be displayed in a cumulative frequency table. Make up a years worth of grades for a student who took 27 hours this year & all were 3 hour classes. Break up their grades such that 30% are A, 20% B, 40%C & remainder either D or F. Put grades in chart and manually show how you calculated the students GPA.
- Next assume student above decides to take a stats course this semester & ends up in the class with an 89.9 which per sylabus is a B. Write a brief memo to instructor requesting that grade be rounded up given the impact on your GPA. This is called a scenario Analysis & is effective when you want to give a reason for something. You do not need to include your math here given it will only distract from your message.
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