At the fall festival the tennis team is selling hamburgers for $2.00, hotdogs for $1.50, and drinks for $1.00. Half of the money
1 answer:
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Answer:
Option C is correct.
Step-by-step explanation:
We have been given the graph
The graph is not of exponential function
Therefore, option A and B are discarded.
Now, We can see the graph is starting from 37
And the difference between Amount of water from the table is 19-22 that is -3
So, the graph is arithmetic
So, applying the formula ; d is common difference here we have d= -3
Therefore, option C is correct.
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.
It is a positive correlation
A positive correlation means that when the variable x increases the variable y also increases.
It is a negative correlation
A positive correlation means that when the variable x increases the variable y decreases.
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
