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Taya2010 [7]
4 years ago
8

6.11 Assume that an r of .80 describes the relationship between daily food intake, measured in ounces, and body weight, measured

in pounds, for a group of adults. Would a shift in the units of measurement from ounces to grams and from pounds to kilograms change the value of r ? Justify your answer.
Mathematics
1 answer:
Sloan [31]4 years ago
8 0

Answer:

The coefficient of correlation does not change.

Step-by-step explanation:

We are given the following in the question:

The daily intake food is measured in ounces.

The body weight is measured in pounds.

Correlation between food intake and body weight = 0.80

Properties of correlation:

  • Correlation is a technique that help us to find or define a relationship between two variables.
  • It is a measure of linear relationship between two quantities.
  • The correlation between two variables is not effected by the units of the variable.
  • Even if the variable of the explanatory variable or the response variable changes, the correlation does not not change and remains same.

Conclusion:

A shift in units from ounces to grams and from pounds to kilogram does not change the value of coefficient of correlation.

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Step-by-step explanation:

Distributive property = a*(b + c) = a*b +a*c

35 * 4 + 35 * 6 = 35 *( 4+6)

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4 years ago
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A pasture is twice as long as it is wide. its area is 88,200 ft2. how wide is the pasture?
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If the width is w and the length is l, then 2w=l. In addition, l*w=88200 (using the area formula). Plugging 2w in for l, we get 2w*w=88200=2w^2. Dividing both sides by 2, we get w^2=44100 and w=sqrt(44100)=210. 
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3 years ago
NEED A FAST ANSWER
Marta_Voda [28]

Answer:


Step-by-step explanation:

2.) −$180/year


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3 years ago
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6 0
3 years ago
1 point
galina1969 [7]

Answer:

(B) 20

Step-by-step explanation:

Let small puppet be represented by-----------------s

Let large puppet be represented by-----------------l

Total number of puppets expression will be: s+l =25---------a

The expression for total costs will be : 1$ s + $2l=$30-------b

Equation a can be written as; s= 25-l ------------c

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l, large puppets = 5

s, small puppets = 25-5 = 20

Answer choice A is incorrect because 25 is the total number of all puppets

Answer choice C and D are incorrect because the numbers are less that that of small puppets.

3 0
3 years ago
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