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kodGreya [7K]
3 years ago
7

A student was studying the relationship between how much money students spend on food and on entertainment per week. Based on a

sample size of 270, he calculated a correlation coefficient (r) of .013 for these two variables. Which of the following is an an appropriate interpretation?
a. This low correlation of .013 indicates there is no relationship.
b. There is no linear relationship but there may be a nonlinear relationship.
c. This correlation indicates there is some type of linear relationship.
Mathematics
1 answer:
KATRIN_1 [288]3 years ago
7 0

Answer:

The answer is "Option b".

Step-by-step explanation:

In this question, the value of the correlation coefficient is 0.013 from the given information. It is the equation, which realized the indeed closer their correlation coefficient is to -1 or 1, the greater the positive correlation, although in this case, the value of the correlation coefficient is 0.013, close to "0".

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Find the unknown side (w) of the rectangular solid. Please help..
Amiraneli [1.4K]

Answer:

2 cm

Step-by-step explanation:

8x13=104

208/104=2

8 0
3 years ago
The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed
OlgaM077 [116]

Answer:

Test is Left tailed test

Parameter tested is standard deviation

Step-by-step explanation:

We are given the hypothesis as;

Null hypothesis; H0: σ = 8.6

Alternative hypothesis; H1: σ < 8.6

Where;σ is a constant generally known in statistics as the standard deviation.

Now, it's the alternative hypothesis that will let us know whether this is left tailed, right tailed or two tailed.

Alternative hypothesis says σ < 8.6.

This means that the values of σ that satisfy this hypothesis are less than 8.6 and thus are on the left hand side of 8.6 on a number line. Thus, the shaded region in a normal distribution curve will be on the left.

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3 0
3 years ago
. Complete the analogy: _____________ is to Function as Transformation is to One-to-one Function.
Elodia [21]

Answer:

The function machine metaphor helps explain the definition and properties of a function. ... One tool for understanding functions is the function machine metaphor. Once you ... We can imagine it is some machine that does this transformation.

Step-by-step explanation:

https://www.khanacademy.org/math/algebra2/x2ec2f6f830c9fb89:transformations/x2ec2f6f830c9fb89:symmetry/v/function-symmetry

this might help you.

4 0
3 years ago
The distance between two towns is 7km on a map, the distance between the towns is 28cm. Find as a ratio, the scale of the map?
kirill115 [55]

Answer:

1:4

Step-by-step explanation:

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the scale drawing is usually reduced at a constant dimension

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4 0
3 years ago
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sleet_krkn [62]
Answer:
1kg=2.2lb
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3 years ago
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