<u>Given</u>:
Mean,
Standard deviation,
The Chebyshev theorem will be used for the solution of the given query,
i.e.,
(i)
⇒
The lower limit will be:
=
=
=
The upper limit will be:
=
=
=
hence,
The 75% houses sold are between:
⇒ (200000, 400000)
(ii)
⇒
By putting the values, we get
now,
⇒
(%)
hence,
88.88% houses sold between 150000 and 450000.
(iii)
⇒
By putting the values, we get
now,
⇒
(%)
hence,
85.21% houses are sold between 170000 and 430000.
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