for what value of 'a' 4,6,a,9,10,19 will 7.5 be the median?
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Given that the numbers are 4, 6, a, 9, 10 and 19.
/* Median is the number that is in the middle. */
/* There are 6 numbers, the median will be half of the middle two */
Median = (a + 9)/2
Median = (a + 9)/2/* It is given that 7.5 is the median. */
the median. */(a + 9)/2 = 7.5
a + 9 = 15
a + 9 = 15a = 6
Answer: a = 6..........☺
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