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Computers and Technology, 09.02.2021 09:20 hwest98
Problem 1: A teacher records the following list of the grades he gave to his 25 students on a set of essays: A B C B C A B B C D D B C A C A F B D F C C C B C Display this data as a frequency table in a histogram or in a pie chart (in grade vs. the number of students) and find frequencies and relative frequencies for this data. Problem 2: The following data show the body temperatures (in Fahrenheit) of randomly selected subjects. Construct a frequency table with seven classes: 96.9โ97.2, 97.3โ97.6, 97.7โ98.0, and so on. Display the data in the histogram or in the pie chart 98.6 98.4 97.6 98.7 98.2 97.2 98.6 98.6 98.6 97.7 97.4 99.6 98.4 98.6 98.0 98.6 98.8 98.9 98.7 98.6 98.0 98.8 98.0 98.6 99.4 98.2 99.0 98.6 98.0 99.5 98.2 98.0 98.4 97.0 98.3 97.5 98.0 97.8 98.4 97.0 98.5 97.3 98.6 98.0 98.4 98.8 97.3 97.6 98.6 98.4 Problem 3: A student has 38 credits with a grade of A, 22 credits with a grade of B, and 7 credits with a grade of C. What is his grade point average (GPA)? Base the GPA on values of 4.0 points for an A, 3.0 points for a B, and 2.0 points for a C. Problem 4: Find the mean, median, and mode for the following data: x = {20/3, 18/3, 17/3, 55/9, 55/9, 19/3, 16/3, 52/9} What is sample and population deviations for this data? Problem 5: Find the type of data with zero standard deviation. What do you think about the mean, median, and mode of this data? Problem 6: What is the difference between mean and weighted mean?
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