This problem is modeled on the example worked in §3.1 of Lomax & Hahs-Vaughn.
Use this small data set:
X
1
=
7
\displaystyle {X}_{{1}}={7}
X
1
=
7
,
X
2
=
5
\displaystyle {X}_{{2}}={5}
X
2
=
5
,
X
3
=
5
\displaystyle {X}_{{3}}={5}
X
3
=
5
,
X
4
=
2
\displaystyle {X}_{{4}}={2}
X
4
=
2
,
X
5
=
2
\displaystyle {X}_{{5}}={2}
X
5
=
2
,
X
6
=
2
\displaystyle {X}_{{6}}={2}
X
6
=
2
,
X
7
=
4
\displaystyle {X}_{{7}}={4}
X
7
=
4
,
X
8
=
3
\displaystyle {X}_{{8}}={3}
X
8
=
3
Please find
∑
i
=
1
8
X
i
=
\displaystyle {\sum_{{{i}={1}}}^{{8}}}{X}_{{i}}=
i
=
1
∑
8
X
i
=
Please find
∑
i
=
1
6
X
i
=
\displaystyle {\sum_{{{i}={1}}}^{{6}}}{X}_{{i}}=
i
=
1
∑
6
X
i
=
Please find
∑
i
=
5
7
X
i
=
\displaystyle {\sum_{{{i}={5}}}^{{7}}}{X}_{{i}}=
i
=
5
∑
7
X
i
=
Submit
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