Question

find median of 8,7,9,12,8,17,15,10​

Answer 1

HERE IS UR ANSWER

STEP BY STEP EXPLANATION:

• ARRANGE THE GIVEN DATA IN ASCENDING ORDER

7,8,8,9,10,12,15,17

• THE FORMULA FOR FINDING MEDIAN OF EVEN NUMBERS IS

$\frac{n}{2} + \frac{n + 1}{2} {}^{th \: } observtion$

• HERE n= no. of terms in the observation

$= \frac{8}{2} + \frac{8 + 1}{2} {}^{th} observation$

$= \frac{4 + (4 + 1)}{2}$

$= \frac{4 + 5 {}^{th } }{2}$

• HERE 4TH OBSERVATION IS '9'
• WHILE 5TH OBSERVATION IS '10'
• $hence \\ \\ \frac{9 + 10}{2} \\ \\ = \frac{19}{2} \\ \\ = 9.5 \\ \\ therefore \: the \: median \: of \: the \: above \\ observation \: is \: 9.5$

hope it helped

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Answer 2

Answer:

median = 9.5

step by step explanation:

arrange the digits in ascending order : 7, 8 ,8, 9, 10 ,12 ,15,

17

total count of digits =8 which is even

so the formula will be n/2, n/2+1

now the digits we get are 4 and 5

means 4th and 5th term

so the terms ar 9 and 10

the formula will be : mean = 9+10/2

answer will be 19 /2

the answer = 9.5