Answer:
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Step-by-step explanation:
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Answer:
The coefficient of variation for the weight and age are 5.9% and 10.6%.
Step-by-step explanation:
The coefficient of variation (CV) is well defined as the ratio of the standard deviation to the mean. It exhibits the degree of variation in association to the mean of the population.
The formula to compute the coefficient of variation is:

Here σ = standard deviation and µ = mean.
Compute the mean and standard deviations of the two data set in Excel using the following functions.
Mean=AVERAGE()
Standard deviation=STDEV.S()
Consider the Excel sheet attached.
The mean and standard deviation of weight are:
Mean = 202, Standard deviation = 11.87
And the mean and standard deviation of weight are:
Mean = 25.88, Standard deviation = 2.75
Compute the coefficient of variation for the weight as follows:


Compute the coefficient of variation for the age as follows:


Thus, the coefficient of variation for the weight and age are 5.9% and 10.6%.
Answer:
The correct option is;
C. (1.6, 1.3)
Step-by-step explanation:
Given that at x = 1.5 the y-values of both equations are y = 1.5 and y = 1 respectively
The x-value > The y-value
The difference in the y-values = 1.5 - 1 = 0.5
At x = 1.6 the y-values of both equations are y = 1.2 and y = 1.4 respectively
The x-value > The y-value
The difference in the y-values = 1.2 - 1.4 = -0.2
At x = 1.7 the y-values of both equations are y = 0.9 and y = 1.8 respectively
The x-value > The first y-value and the x-value < the second y-value
The difference in the y-values = 0.9 - 1.8 = 0.9
Therefore, the approximate y-value can be found by taking the average of both y-values when x = 1.6 where the difference in the y-values is least as follows;
Average y-value at x = 1.6 = (1.2 + 1.4)/2 = 1.3
Therefore, the best approximation of the exact solution is (1.6, 1.3)
By calculation, we have;
-3·x + 6 = 4·x - 5
∴ 7·x = 11
x = 11/7 ≈ 1.57
y = 4 × 11/7 - 5 ≈ 1.29
The solution is (1.57, 1.29)
Given:
The given volume formulas to calculate the volume of a rectangular
pyramid.
To find:
The correct volume formula.
Solution:
The volume of a rectangular pyramid is:

Where, B is the base area of the rectangular pyramid and h is the vertical height of the rectangular pyramid.
Therefore, the correct volume of a rectangular pyramid is
.
Note: In the given problem, the options are not in correct form.