Notes 12.2 MATH 1001 - 12.2 Measures of central tendency mean median mode midrange x x= The Mean n 1 Find the mean of the following data 6 12 3 14 15 x

Notes 12.2 MATH 1001 - 12.2 Measures of central tendency...

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12.2 Measures of central tendency: mean, median, mode, midrangeThe Meanx= xn1.Find the mean of the following data.6, 12, 3, 14, 15x= ???Here is a list of the number of classes a group of students aretaking.3, 4, 4, 3, 3, 4, 4, 5, 4, 5, 1, 2, 2, 3, 4, 3, 2, 4, 4, 3, 4, 2, 1, 4, 4, 3, 4, 3, 2, 4Find the mean (average) number of classes that a student in this group is taking.x= ???Construct a frequency distributionfor the data.Find the mean of the frequency distribution above The Mean of a Frequency Distribution x = xf n Score x 1 2 3 4 5 Frequency f
4. Find the mean for the data items in the given frequency distribution. 8 3 . 5.Find the median of the following data set.25, 22, 21, 20, 26, 23, 19, 21 The ModeThe mode is the data value that occurs most frequently. If there is more than one value with the highest frequency each of those values is the mode. If no value occurs twice there is no mode. 6.Find the mode of the following data set37, 34, 33, 32, 38, 35, 33, 31 The MidrangeMidrange= Highest Value+Lowest Value 2
Find the midrange of the following data set37, 34, 33, 32, 38, 35, 33, 317. Do #49, pg. 7928.Do #50, pg. 7929. The average man sleeps 7.8 hours daily. In a certain week Ben slept 7.8 hours a night for six nights, and then slept 12 hours on the seven’s night after going to a party. What is the mean number of hours of sleep he got that week?10.Find the grade point average Grade # credit hours B 2 B 5 B 4 C 5

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