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Answer :
median = 66, mean = 66 and midrange = 66
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Answer: (d) mean = 66, median = 66, midrange = 66
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Find Mean
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To find the mean, we add up all the scores and divide the total by the number of scores.
[tex]\text {mean = } \dfrac{\text {total of all the scores}}{\text {number of scores}} [/tex]
[tex]\text {mean = } \dfrac{68 + 62 + 60 + 64 + 70 + 66 + 72 }{7} [/tex]
[tex]\text {mean = } \dfrac{462}{7} [/tex]
[tex]\text {mean = } 66[/tex]
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Find Median
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To find the median, we arrange the number in ascending order and look for the middle number.
Ascending order : 60, 62, 64, 66, 68, 70, 72
66 is in the middle, so 66 is the median
Median = 66
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Find Midrange
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To find midrange, we find the average of the min and max value.
[tex]\text {midrange = } \dfrac{60 + 72}{2} [/tex]
[tex]\text {midrange = } \dfrac{132}{2} [/tex]
[tex]\text {midrange = } 66[/tex]
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Answer mean = 66, median = 66, midrange = 66
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--------------------------------------------------------------------------
Find Mean
--------------------------------------------------------------------------
To find the mean, we add up all the scores and divide the total by the number of scores.
[tex]\text {mean = } \dfrac{\text {total of all the scores}}{\text {number of scores}} [/tex]
[tex]\text {mean = } \dfrac{68 + 62 + 60 + 64 + 70 + 66 + 72 }{7} [/tex]
[tex]\text {mean = } \dfrac{462}{7} [/tex]
[tex]\text {mean = } 66[/tex]
--------------------------------------------------------------------------
Find Median
--------------------------------------------------------------------------
To find the median, we arrange the number in ascending order and look for the middle number.
Ascending order : 60, 62, 64, 66, 68, 70, 72
66 is in the middle, so 66 is the median
Median = 66
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Find Midrange
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To find midrange, we find the average of the min and max value.
[tex]\text {midrange = } \dfrac{60 + 72}{2} [/tex]
[tex]\text {midrange = } \dfrac{132}{2} [/tex]
[tex]\text {midrange = } 66[/tex]
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Answer mean = 66, median = 66, midrange = 66
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