Measures of Central Tendency Which of the following data sets have outlier(s)? 1, 5, 7, 9, 10, 11, 15 25, 39, 49, 53, 56, 60 18, 19, 20, 24, 30, 60 70, 74, 76, 79, 82, 83 Find the mean, median and mode of the following numbers: 4, 10, 11, 20, 21, 30, 9, 100, 21 Mean: Median: Mode: Find the range: 30, 31, 28, 18, 30, 4, 1 Which of the following sets of data have outliers: 90, 92, 93, 94, 97, 100 4, 20, 27, 28, 33, 34, 37 64, 67, 68, 69, 73, 75, 79 18, 33, 38, 39, 42, 43, 46 Find the mean, median, mode, range, and outliers for the data below. Candy Calories Twix 291 Reeses 232 Milky Way 228 Charleston Chew 230 Runts 60 Hershey Choc. Bar 210 Butterfinger 207 Fun Dip 150 Twizzler 160 Snickers 271 Swedish Fish 150 M&M’s 243 Skittles 231 Kit Kat 218 Baby Ruth 156 Mean: Median: Mode: Range: Outliers: Find the mean, median, and mode for the following numbers: 5, 19, 45, 2, 4, 29, 18, 2, 7 Mean:
Median: Mode: Find the mean, median, mode, range, and outliers for the data below. Average Rain Fall in Atlantic City Inches Month January 3.5 February 3.1 March 3.6 April 3.6 May 3.3 June 2.6 July 3.8 August 4.1 September 2.9 October 2.8 Mean: Median: Mode: Range: Outliers: Find the range: 7, 9, 17, 20, 28, 30, 31 Your test grades are 70, 85, 95, 93, and 94. You have one more test and want an average of an 86. What must you earn on your next test? the mean, median, mode, range, and outliers for the data below. School Play Year Tickets Sold 1990 321 1991 370 1992 376 1993 474 1994 467 1995 474 1996 540 1997 510 1998 579 1999 603 2000 589 2001 632 2002 699 2003 730 2004 727 2005 748 Mean: Median: Mode: Range: Outliers: test grades are 90, 95, 83, 89, and 91. What must you earn on the next test to receive an average of 91?
the mean, median, mode, range, and outliers for the data below. Average Temperature Trenton Month Temperature (°F) January 30° February 32° March 42° April 51° May 62° June 71° July 75° August 74° September 67° October 56° Mean: Median: Mode: Range: Outliers: test grades are 60, 55, 68, 78, 80, 68, and 72. To pass this your average must be a 70 or above. You have one more test to take. Is it possible for you to pass this Why or why not? If you can pass the class what score must you earn on the next test? the following data set: 13, 18, 13, 14, 13, 16, 14, 21, 13 ~ The mean is 15 ~ The mode is 13 ~ The median is 14 What would happen if the value of 20 was added to the data set? How would the mean, median and mode change? the following data set: 13, 18, 13, 14, 13, 16, 14, 21, 13 ~ The mean is 15 ~ The mode is 13 ~ The median is 14 What would happen if a value “x”, was added to the set? How would the median change: If x was 16?
If x was another number in the list other than 16? the data set: 70, 74, 77, 80, and 83. Identity the data values that remain the same if the value “x”, which is less than 70, is added to the set of data. the data set: 48, 52, 55, 58, 60. Identify the data values that remain the same if “x”, a number greater than 55, is added to the data set. are comparing grades with a friend and he you that you cannot earn an A in the class. To receive an A in the class your test average must be a 93 or above. Your grades are 100, 79, 80, 92, 87, 60, and a 93. You still have one more test left. Is it possible to get an A in this class? Why or why not? If it is possible to earn an A what must you get on your next test? the following data set: 8, 9, 10, 10, 10, 11, 11, 11, 12, 13 ~ The mean is 10.5 ~ The median is 10.5 ~ The mode is 10 and 11 What would happen if the value of 10 was added to the data set? How would the mean median and mode change? the following data set: 8, 9, 10, 10, 10, 11, 11, 11, 12, 13 ~ The mean is 10.5 ~ The median is 10.5 ~ The mode is 10 and 11 What would happen if a value of “x” was added to the set? How would the mean change? If x was not 12? If x was another number on the list other than 12?
If x was a number not on the list? Frequency Tables & Histograms following are test grades from your classmates. Organize the data into a frequency table. 100 73 89 65 86 79 83 95 83 96 83 86 76 69 89 79 74 85 Test Grade Tally Frequency following are times that it took children in gym class to run a mile. Organize this data into a frequency table. 7:23 8:02 10:04 7:05 7:50 9:24 6:59 9:01 8:34 7:25 8:55 6:39 7:55 11:01 9:28 8:02 9:54 8:24 Tally Frequency 23. Organize this data into a histogram. Length of walk time 21 35 48 63 67 11 19 31 43 15 44 37 42 34 69 67 Time Tally Frequency 10-19 III 3 20-29 I 1 30-39 IIII 4 40-49 IIII 4 50-59 0 60-69 IIII 4
53. Draw a scatter plot from the following data: Size of shoe Height (inches) 55 58 62 68 6.5 63 7.3 70 8 79 8.7 88 54. Consider the scatter graph to answer the following: Which two points would give the line of best fit? A and B A and C D and B There is no pattern 55. Consider the scatter graph to answer the following: Which two points would give the line of best fit? A and B B and C C and D There is no pattern 56. Using the scatter graph, predict the mile time of someone who spends 6 hours a week training. 57. Using the scatter graph, predict the mile time of someone who spends 12 hours a week training. 58. Consider the scatter graph to answer the following: Which two points would give the line of best fit? A and D A and C B and D There is no pattern