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snow_lady [41]
3 years ago
13

Twenty-seven less than twice a number is -1

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
5 0

Answer: 13

Step-by-step explanation:

2x-27=-1

2x=26

X=13

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In a multiple linear regression analysis, statistical model utility is determined by the value of R2 and 2s, while practical mod
Natali [406]

Answer:

This statement is true because if F statistics is significant, then the entire multiple regression model is useful for the prediction of y.

Step-by-step explanation:

Solution:

In a multiple linear regression analysis, the statistical model utility is determined by the value of R2 and ∂2, while the Global F test p-value determines the practical model.

This statement is true because if F statistics is significant, then the entire multiple regression model is useful for the prediction of y.

The F test is a statistical test that is very flexible. F test can evaluate multiple model terms.

The F test indicates whether a linear regression model provides a better fit to data than a model that contains no independent variable.

The F test for overall significance has two hypotheses:

1- Null hypothesis:

                              The fit of the intercept only model and your model are equal.

2- Alternative hypothesis:

                               The fit of the intercept-only model is significantly reduced compared to your model.

Compare p-value for the F test,

If the p-value is less than the significance level, the sample data provide sufficient evidence  that the regression model fits the data better with no independent variable.

5 0
3 years ago
Sara reads 250 words per minute for 2 hours and gets tired and reads 125 words per minute for 3 hours. on average how many words
brilliants [131]
<span>250*(2*60)=30000
125*(3*60)=22500
22500+30000=52500
52500:((3+2)*60)=175 (</span><span>words per minute)</span>
5 0
3 years ago
Is 1.30 bigger than 1.3?
FromTheMoon [43]
It is the same value
4 0
3 years ago
A group of people were asked if they had run a red light in the last year. 385 responded "yes", and 472 responded "no".
Dimas [21]

Answer:

44.9%

Step-by-step explanation:

you can find the probability by dividing the total number of people by the number of people who have run a red light:

385/857

simplify into a decimal:

0.449

convert into a percent to get your answer:

44.9%

3 0
3 years ago
Is this correct or need more? but still need help
lana [24]
8 ft= ___ inches
1 ft= 12 inches
8 ft= 12 x 8 inches
8 ft=96 inches
She has 96 inches, but she needs 100 inches. So she needs 4 more inches of lumber. 
6 0
3 years ago
Read 2 more answers
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