Answer:
C. The next fraction in the pattern is 243/324.
Explanation:
If you notice every fraction is doubled by 3 so they are all equal.
Answer:
Step-by-step explanation:
Given that the difference of sample means of two populations is 108.7, and the standard deviation of the difference in sample means is 32.
H0: difference inmeans =0
Ha: difference inmeans not equal to 0
(Two tailed test)
Test statistic = mean difference/std deviation
For 68% confidence level, }z}<1
Here z =3.40 >1
Hence reject null hypothesis
The difference between the means cannot be 0 and there is statistical evidence at 68% level to reject null hypothesis
Answer: 17 miles per hour.
Step-by-step explanation:
1. To solve this problem you must apply the following formula:
=Δx/Δt
Where Δx is the position variation and Δt is the time variation.
2. Then, based on the graph shown attached, you have:
3. Therefore, you have that the result is:
Answer:
a. 1/12 (hope it help)
Step-by-step explanation:
5sec/60sec=1/12