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Len [333]
3 years ago
9

Rohit wants to find the best model for a bivariate data set. He used a calculator to create a linear model, a quadratic model, a

nd an exponential model. The coefficient of determination for the linear model was 0.85. The coefficient of determination for the quadratic model was 0.90. The coefficient of determination for the exponential model was 0.81. Which model should he use to represent the data set?

Mathematics
2 answers:
san4es73 [151]3 years ago
8 0

The answer is quadratic, I took the test.

sasho [114]3 years ago
5 0

Answer: quadratic

Step-by-step explanation:

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In a recently administered iq test, the scores were distributed normally, with mean 100 and standard deviation 15. what proporti
iragen [17]

To solve for proportion we make use of the z statistic. The procedure is to solve for the value of the z score and then locate for the proportion using the standard distribution tables. The formula for z score is:

z = (X – μ) / σ

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when X = 70

z1 = (70 – 100) / 15 = -2

Using the standard distribution tables, proportion is P1 = 0.0228

 

when X = 130

z2 = (130 – 100) /15 = 2

Using the standard distribution tables, proportion is P2 = 0.9772

 

Therefore the proportion between X of 70 and 130 is:

P (70<X<130) = P2 – P1

P (70<X<130) = 0.9772 - 0.0228

P (70<X<130) = 0.9544

 

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3 years ago
Describe and correct the error in
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How many numbers between 50 and 500 are divisible by 7?​
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Step-by-step explanation:

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Algebra public opinion polls reported in newspapers are usually given with a margin of error. for example, a poll with a margin
sweet-ann [11.9K]

Answer:

Minimum percent of the vote that candidate Towne is expected to recieve:

m=51% - 6.3% * 51% =47.787%

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Solution:

Margin of error: E=6.3%

Minimum percent of the vote that candidate Towne is expected to recieve:

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Maximum percent of the vote that candidate Towne is expected to recieve:

M=51% + E * 51%

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M=51% + 51% * 6.3 / 100

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M=54.213%


8 0
3 years ago
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