Math Assignment 1 - 1870 Words

I lost 2 points My mistake was failing to notice that the stems should split at the last digit, meaning the first two digits are separated from the last digit by a stem. Also, each stem must be assigned an equal number of leaf digits. So, zero should be added to the front of the 9 for the score of 96. So, choice (b): 09, 10, 11, 12,13, and 14 is the correct answer, since the stems separate the first two digits from the last digit and include an appropriate range of 09-14, for the numbers from and in between 96-145. Choice (a) would not work out since the lowest score begins with the stem of 09 and the highest score contains the stem of 14, this choice only includes numbers from zero and 10, which none of the values are under. Choice (c)†¦show more content†¦Choice (a) would not fit since stem plots are best used to display fairly small data sets and to see the distribution’s shape, and the appropriate choice, the boxplot, is also included as inappropriate when in actuality this is no t true. Choice (c) is wrong since a bar graph and a pie chart are both used to compare categorical data, which is not being compared in this question. Although in choice (d) it is correct that a dot plot would be inappropriate since there aren’t any observed frequencies with the same scores, using a histogram would be inappropriate instead of appropriate since, it was already proven that using this type of graph is not the best when comparing a large data set as this one. Choice (e) is obviously wrong, since it was proven above that a boxplot is the most appropriate way to display the data, which disagrees with the statement that none of the above are correct. I lost 2 points. I got confused as to what quartile I was looking at, I looked at the classes containing the first quartile, instead of the third quartile. The correct class that contains the third quartile is choice (c): 30-40. To figure out the third quartile, we first figure out the median by adding up all the frequency values (13+8+15+7+2+3+1+1= 50), adding that total by one, and dividing by two equaling a median of about 25.5. So, the class that contains the median is 20-30. We then figure out the first quartile or the lower half of the median which is equal to the 25thShow MoreRelatedBusiness Maths Statistics Assignment 11214 Words   |  5 PagesBMS11 Business Maths and Statistics ASSIGNMENT 1 DESCRIPTIVE STATISTICS USING EXCEL PART B. QA). The pie charts show that a higher percentage of the male gender has tried the product in comparison to the female gender. Over 50% of both genders have tried the product. 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