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fff Victor has taken an aptitude test 8 times and his scores are 96, 98, 98, 105, 36, 87, 95 and 93. Is mean or median the better measure of central tendency?
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| fff Find the measures of central tendency for the data set 3, 7, 9, 4, 5, 4, 6, 7 and 9. fff |
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| fff Find the median for the data set which shows the heights (in inches) of 10 students in Mr. Charles's class 65, 60, 64, 61, 66, 67, 67, 67, 62 and 77. fff |
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DD The heights (in inches) of 10 students in Mr. Henry's class are 65, 60, 64, 61, 66, 67, 67, 67, 62 and 77. Find the range of the heights.
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| DD Find the mean of the data set: 11, 15, 6, 3, 4, 9, 12, 17, 28, 10 DD |
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DD Annie and Danielle traveled to Providence this autumn. The number of miles they drove and the amount of gas utilized are given in the table. Calculate the average mileage (per gallon) of the car during the trip. | Day 1 | Day 2 | Day 3 | Day 4 | | Distance (in miles) | 504 | 420 | 348 | 132 | | Gas utilized (in gallons) | 42 | 35 | 29 | 11 |
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DD The table shows the average monthly temperature of a city in the past 5 months. Which month has the median temperature?| Month | Temperature (°C) | | January | 33 | | February | 43 | | March | 36 | | April | 40 | | May | 38 |
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DD The population of an island in the last 4 decades is shown in the table. Determine the mean population on the island during the time period. | Year | Population | | 1960 | 60000 | | 1970 | 86000 | | 1980 | 105000 | | 1990 | 141000 |
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DD The number of students of a town in the last 4 decades is given in the table. Determine the range of the number of students in the town. | Year | Number of students | | 1960 | 68000 | | 1970 | 86000 | | 1980 | 104000 | | 1990 | 135000 |
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DD The population in a town during the last 4 decades are in the table. Find the mean population.| Year | Population | | 1960 | 66000 | | 1970 | 86000 | | 1980 | 106000 | | 1990 | 138000 |
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DD The table shows the heights of the students in Mr. Paul's class. Find the range of the data.| Height (in inches) | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | | No. of students | 3 | 5 | 4 | 2 | 7 | 6 | 3 | 5 |
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DD The table shows the average monthly temperature in a locality in the last 5 months. Find the range of the data.| Month | Temperature (°C) | | January | 34 | | February | 46 | | March | 37 | | April | 45 | | May | 41 |
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| DD Find the median for the data set which shows the heights (in inches) of 10 students in Mr. Jeff's class 67, 62, 66, 63, 68, 69, 69, 69, 64 and 79. DD |
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DD The number of games won by a famous basketball team between 1991 and 2000 are 25, 30, 25, 50, 40, 75, 40, 50, 35 and 40. Which of the box-and-whisker plots represents the data?
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DD Ethan has taken an aptitude test 8 times and his scores are 96, 98, 98, 105, 36, 87, 95 and 93. Is mean or median the better measure of central tendency?
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DD What is the outlier in the box and whisker plot?
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| DD Find the measures of central tendency for the data set 4, 8, 10, 5, 6, 5, 7, 8 and 10. DD |
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DD The heights (in inches) of 10 students in Mr. Josh's class are 60, 55, 59, 56, 61, 62, 62, 62, 57 and 72. Find the range of the heights.
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DD The table shows the scoreboard of a 100 m race. Which box-and-whisker plot correctly displays the data in the table? Also find out the range of the box-and-whisker plot.| Contestant | Time taken (in seconds) | | Andy | 20 | | Joe | 18 | | Jake | 14 | | Henry | 10 | | Justin | 18 |
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| DD If the mean of the data 48, 54, 72, x, 60, 66 is 59, then find the value of x. DD |
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DD Sheela and Irena traveled to Austin this autumn. The number of miles they drove and the amount of gas utilized are given in the table. Calculate the average mileage (per gallon) of the car during the trip. | Day 1 | Day 2 | Day 3 | Day 4 | | Distance (in miles) | 247 | 624 | 208 | 208 | | Gas utilized (in gallons) | 19 | 48 | 16 | 16 |
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DD The table shows the average monthly temperature of a city in the past 5 months. Which month has the median temperature?| Month | Temperature (°C) | | January | 38 | | February | 52 | | March | 39 | | April | 49 | | May | 44 |
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| DD The graph of a normal distribution will be ________. DD |
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DD The population of an island in the last 4 decades is shown in the table. Determine the mean population on the island during the time period. | Year | Population | | 1960 | 60000 | | 1970 | 80000 | | 1980 | 103000 | | 1990 | 135000 |
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DD The number of doctors of a village in the last 4 decades is given in the table. Determine the range of the number of doctors in the village. | Year | Number of doctors | | 1960 | 66000 | | 1970 | 87000 | | 1980 | 105000 | | 1990 | 137000 |
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DD The number of students in a locality during the last 4 decades are in the table. Find the mean number of students.| Year | Number of students | | 1960 | 66000 | | 1970 | 84000 | | 1980 | 104000 | | 1990 | 137000 |
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DD The table shows the heights of the students in Mr. Charlie's class. Find the range of the data.| Height (in inches) | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | | No. of students | 3 | 5 | 4 | 2 | 7 | 6 | 3 | 5 |
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DD The table shows the average monthly temperature in a village in the last 5 months. Find the range of the data.| Month | Temperature (°C) | | January | 32 | | February | 47 | | March | 35 | | April | 45 | | May | 40 |
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DD The table shows the scoreboard of a 100 m race. Which box-and-whisker plot correctly displays the data in the table? Also find out the range of the box-and-whisker plot.| Contestant | Time taken (in seconds) | | Dennis | 20 | | Jim | 18 | | Victor | 14 | | Bill | 10 | | Josh | 18 |
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| DD Find the mean of the data set: 19, 25, 9, 4, 6, 13, 21, 27, 46, 16 DD |
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DD The following table shows the heights of mountains in the U.S. Choose the appropriate box-and-whisker plot of the data and find the mean height of the mountains.| Name | Height (in hundred ft.) | | Mt. McKinley | 200 | | Mt. St. Elias | 180 | | Mt. Foraker | 175 | | Mt. Bona | 165 | | Mt. Blackburn | 160 | | Mt. Alverstone | 145 | | Sunshine Peak | 140 |
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| DD If the mean of the data set {12, 18, 36, 24, x, 30} is 23, then find the mean of the data set {x - 3, x - 2, x - 1, x, x + 1, x + 5}. DD |
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DD The loss percentages of a company for 6 months are given in a bar graph. What is the outlier in the data?
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DD If the mean of the data set {x - 7, x - 8, x + 6, x + 9} is 8, then find the mean of the data set {x, x2, x3, x4}.
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| DD Find the standard deviation of the data set {2, 18, 4, 16}. DD |
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DD Find the variance of the data set {1, 2, 3, 4, 10}.
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