Answer:

Step-by-step explanation:
The constant of proportionality is the slope of the line joining the two points
(70,40) and (49,28).
Recall the slope formula:

We substitute the point to get:

<u>Alternatively</u>:
A proportional relation is given by

where k is the constant of proportionality.
Using any point, we substitute and solve for k.


 
        
             
        
        
        
Answer: yuhhhh
Step-by-step explanation: get in to it
sorry for doing this i need points
 
        
             
        
        
        
Answer:
The correct option is C. either a t test or an analysis of variance can be performed.
Step-by-step explanation:
Consider the provided information.
- The t-test, is used for whether the means of two groups are equal or not. The assumption for the test is that both groups are sampled from normal distributions with equal variances. 
- Analysis of Variance (ANOVA) is a statistical method evaluating variations between two or more methods. ANOVA is used in a study to analyze the gaps between group methods.
- ANOVA is used not for specific differences between means, but for general testing.
- The chi-squared test is often used to evaluate whether there was a significant difference in one or more groups between the predicted frequencies and the observed frequencies.
Hence, Either a t test or an analysis of variance can be performed to determine whether the means of two population are equal.
Therefore, the correct option is C. either a t test or an analysis of variance can be performed.
 
        
             
        
        
        
Answer:
 0.96
Step-by-step explanation:
try