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Blizzard [7]
3 years ago
14

The equation for the line of best fit for a data set is y = 2x + 1.5. If the point (1, 4) is in the data set, what is the residu

al of 1? 0.5 3.5 4.0 7.5
Mathematics
2 answers:
andriy [413]3 years ago
3 0
It is related to econometrics, however using simple algebraic logic we can solve this problem. General formula with residual is y=2x+1.5+r, where r is a residual. Plugging the pair into the formula, we obtain that 4=2*1+1.5+r and r=0.5
Zina [86]3 years ago
3 0

Answer: First option is correct.

Step-by-step explanation:

Since we have given that

y=2x+1.5

If the point (1,4) is in the data set.

we need to find the residual of 1.

At x = 1,

y=2x+1.5\\\\y=2\times 1+1.5\\\\y=2+1.5\\\\y=3.5

So, At x = 1, the value of y = 3.5

As we know that

Residual\ value=Estimate\ value-Actual\ value\\\\Residual\ value=4-3.5\\\\Residual\ value=0.5

Hence, The residual of 1 is 0.5.

Thus, First option is correct.

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Answer: 6x*9

Step-by-step explanation:

open parathesises to

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combine like terms

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How many 10-digit ternary strings are there that contain exactly two 0s, three 1s, and five 2s?
Svet_ta [14]

There are \dbinom{10}2 ways of picking 2 of the 10 available positions for a 0. 8 positions remain.

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