Answer:
To subtract fractions, find the LCD and then combine.
Exact Form:
− 67/40
Decimal Form:
− 1.675
Mixed Number Form:
− 1 27/40
Step-by-step explanation:
Please give the brainliest.
B(You survey every 10th student entering school to find out the amount of time it takes them to get to school) is a good survey
Answer:
Your business partner is correct.
General Formulas and Concepts:
<u>Stats - Correlations</u>
- Positive means that it is trending upwards
- Negative means that is is trending downwards
Step-by-step explanation:
If we were to draw a best line of fit into the scatterplot, we would see that we would get a positive slope and a positive line.
That means the scatterplot will be increasing calories as we increase fat.
Therefore, we would have a positive correlation. The business partner is correct.
Answer:
t = 2.2450
d. 0.264
Step-by-step explanation:
The null hypothesis is:
Alternative hypothesis;
The pooled variance t-Test would have been determined if the population variance are the same.
The t-test statistics can be computed as:
t = 2.2450
Degree of freedom 
df = (8-1)+(8-1)
df = 7 + 7
df = 14
At df = 14 and ∝ = 0.05;
Decision Rule: To reject the null hypothesis if the t-test is greater than the critical value.
Conclusion: We reject 
and there is sufficient evidence to conclude that the test scores for contact address s less than Noncontact athletes.
To calculate r²
The percentage of the variance is;
