Answer:
The mean is the average of a set of data.
Example:
To find the mean, add up all of the numbers in the set and divide by the number of values that you added.
35 + 36 + 37 + 38 + 40 + 40 + 41 + 42 + 43 + 55 + 55 + 55 + 56 + 57 + 58 + 59 = 747
Then, divide by the number of values, which is 16.
747/16=46.68
Answer:
Step-by-step explanation:
Hello!
We have the information of the average wind speed for three months:
February:
Mean: 2.324
SD: 1.577
Otlier: 6.73 mph
June:
Mean: 0.857
SD: 0.795
Otlier: 3.93 mph
August
Mean: 0.63
SD: 0.597
Outlier: 2.53mph
a)
Z= X - μ ~N(0;1)
δ
≅2.79
≅ 3.18
b)
Comparing the three Z-scores you can say that the strongest wind event was in June. The number obtained means that is the furthest one in relation to the mean.
Answer:
So the annual percent of decay is: 7.77%
Step-by-step explanation:
If the value of a car was $18000 in 2006, and in 2016 it was worth $4000 it means, it lose 77.77% of its value in 10 years.
To calculate the percentage of decay we use the rule of three:
If the price of the car in 2006 ($18000) represents 100%, then, how much does $4000 represents?
4000*100/18000 = %22.22
Now, we know that $4000 represents 22.22% the original value, so it lose 100% - 22.22% = 77.77% of its value.
So the annual percent of decay is: 77.77% / 10 = 7.77%
