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. 10.7 8.3 8.0 4.5 6.9 8,5 minutes • Find the mean 7.8167 minutes Find the median 8.15 minutes Find the standard deviation 2.

Can someone explain how Q3 is gotten? It is using the percentile formula! Thanks!

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Answer #1

here first we need to sort data in ascending order that will be :4.5,6.9,8.0,8.3,8.5,10.7

now q3 =3/4(n+1)th term

where n=6

hence q3=3/4(6+1)th term

=5.25th term

now hence q3 lies between 5th and 6th term thus we take there average ,

(8.5+10.7)/2

=9.5 mintues

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