<u><em>The answer would be:</em></u>
<h2>
T = 95 + 65h</h2>
<u><em>Reason:</em></u>
T = total cost
95 = initial cost of the violin
65 = cost of lesson per hour
h = the number of hours
Hope this helps! ;)
38*75 = 2850 that is the answer
Answer:
(D) 4/3π(8.06×10^16)
Step-by-step explanation:
The volume of a sphere is given by the formula ...
V = 4/3πr³
__
Using the given value for the radius, the volume of the Sun is ...
V = 4/3π(4.23×10^5 mi)³ ≈ 4/3π(8.06×10^16) mi³
Answer:
(you)
(friend)
So as we can see we got the same z score for both cases so then we can conclude that:
You and your friend are equally ranked.
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the scores of a population, and for this case we know the distribution for X is given by:
Where and
And the best way to solve this problem is using the normal standard distribution and the z score given by:
If we have a z score greater we have a bettr result since the value would be on a higher percentile of the distribution. So if we find the two z scores for the scores given we got:
For the other instructor the distribution changes and would be:
Where and
And the z score for the friend would be:
So as we can see we got the same z score for both cases so then we can conclude that:
You and your friend are equally ranked.
Answer:
no
Step-by-step explanation: