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4 years ago

Nixon recycles 6 cans every week. Which expression shows the total number of cans he recycles in w weeks?

Mathematics

1 answer:

Minchanka [31]4 years ago

5 0

Total number of cans = N
number of weeks = w

The multiplier is 6.

Therefore the expression must be:
N = 6w

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Explain what the following correlation tell you about two sets of data

Nata [24]

Answer:

a. r = 0.4. The correlation is positive. It's a weak association

b. r = -0.96 The correlation is negative. It is a very strong association

c. r = -0.02 The correlation is negative. It is a very weak association

d. r = 1. The correlation is positive. It's a perfect association

e. r = 0.86. The correlation is positive. It is a very strong association

Step-by-step explanation:

r is known as Pearson's linear correlation coefficient measures how strong the correlation between two variables is.

$0$ It is a positive correlation

A positive correlation means that when the variable x increases the variable y also increases.

$-1\leq r$ It is a negative correlation

A positive correlation means that when the variable x increases the variable y decreases.

$r = 0$ means there is no correlation between the variables.

a. r = 0.4. The correlation is positive. It's a weak association

b. r = -0.96 The correlation is negative. It is a very strong association

c. r = -0.02 The correlation is negative. It is a very weak association

d. r = 1. The correlation is positive. It's a perfect association

e. r = 0.86. The correlation is positive. It is a very strong association

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4 years ago

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Hi!
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The table shows the results of a survey of 200 movie rental customers:

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To work this out, you do 46% of 200, as there are 200 customers asked, and the question asks for the number of customers that prefer horror movies, which is 46%.

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