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Veronika [31]
3 years ago
11

The combined weight of the people in an elevator is 49% of the 3,025-pound capacity. Which would be the best way to estimate the

combined weight in pounds of the people in the elevator?
Mathematics
2 answers:
Lena [83]3 years ago
4 0
The answer is c. Find 50% of 3,000.
Ksenya-84 [330]3 years ago
3 0

Answer:

Correct

Step-by-step explanation:

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You know that there is a strong correlation between the consumption of ice cream and body weight. The Pearson's r = 0.78. You al
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Answer:

y = 7.8x + 26

Step-by-step explanation:

Given the following :

Pearson's r = 0.78

Average consumption of ice cream = 5 grams per week (m) with Standard deviation (sd) = 1.5 grams

Average weight = 65 kg with standard deviation of 15kg

Formular for the regression line :

General regression formula :

y = mx + c

y = predicted variable ; m = slope or gradient ; x = predictor variable ; c = intercept

Gradient (m) = change in y / change in x

m = (sd y / sd x) * r

m = (sd weight / sd ice cream) × r

m = (15 / 1.5) × r

m = 10 × 0.78 = 7.8

Intercept:

mean of weight(y) - [Slope×mean of icecream(x)]

65 - [7.8 × 5]

65 - 39 = 26

Hence,

y = 7.8x + 26

5 0
3 years ago
Graph the line that represents this equation<br> Y=-5x+2
defon

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answer:

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