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What is the sst for the data set (1,5),(2,8),(4,14)?
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5 votes
What is the sst for the data set (1,5),(2,8),(4,14)?

User Oliver Ni
by
8.7k points

2 Answers

5 votes

Answer:

42

Explanation:

SST = ∑ ( y − ȳ ) ² (ȳ = pronounced y bar is the mean of y values)

ȳ = (5+8+14)/3 = 27/3 = 9

∑ ( y − ȳ ) ² = ( 5 − 9 ) ² + ( 8 − 9 ) ² + ( 14 − 9 ) ²

= ( − 4 ) ² + ( - 1 ) ² + ( 5 ) ²

= 16 + 1 + 25

= 42

User Lars Kotthoff
by
8.0k points
1 vote

Answer: 42 (apex)


Explanation:


User Shijin TR
by
7.5k points
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