a. With the aid of two tables for the two data sets, determine the following: i. Mean ii. iii. Variance Standard deviation b. Using the values of the mean and standard deviation for persons with tertiary education, obtained in part 'a' sheet 3. Using Chebyshev' theorem, find at least what percentage of people in this group fell between +5 and -5 of the mean.
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- The five most common words appearing in spam emails are shipping!, today!, here!, available, and fingertips!. Many spam filters separate spam from ham (email not considered to be spam) through application of Bayes' theorem. Suppose that for one email account, 1 in every 10 messages is spam and the proportions of spam messages that have the five most common words in spam email are given below. shipping! 0.049 today! 0.044 here! 0.035 available 0.012 fingertips! 0.012 Also suppose that the proportions of ham messages that have these words are shipping! 0.0013 today! 0.0023 here! 0.0023 available 0.0039 fingertips! 0.0010 Round your answers to three decimal places.Find the number of arrangements of the digits {0,1,2,3,4,5,6,7,8,9} such that the first digit is less than 7 AND the second digit is greater than or equal to 2.The five most common words appearing in spam emails are shipping! today! here! available, and fingertips! (Andy Greenberg, "The Most Common Words In Spam Email;' Fo1beswebsite, March 17, 2010). Many spam filters separate spam from ham (email not considered to be spam) through the application of the Bayes theorem. Suppose that for one email account, 1 in every 10 messages is spam and the proportions of spam messages that have the five most common words in spam email are given below. shipping! .051 today! .045 here! .034 available .014 fingertips! .014 Also suppose that the proportions of ham messages that have these words are shipping! .0015 today! .0022 here .0022 available .0041 fingertips! .0011 If a message includes the word shipping! what is the probability the message is spam? If a message includes the word shipping!, what is the probability the message is ham? Should messages that include the word…
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- Suppose 1 discovered that my cat had a taste for the adorable little geckoes that live in the bushes and vines in my yard. In one month, suppose he deposited the following in my carpet: 6 gray geckoes, 12 geckoes that had dropped their tails in an effort to escape, and 15 geckoes that he'd chewed on a little, only 1 of the geckoes was gray, chewed on and tailless, 2 were gray and tailless but not chewed on; 2 were gray and chewed on but not tailless. If there were a total of 24 geckoes left on my carpet, how many were tailless and chewed on but not gray?THEY ARE TWO QUETION PLEASE HEPL!2. What is the maximum number of people needed to be sure that at most three of them have a birthday during the same month? Why?