The percentage that the number of airlines with an average airplane age of 14 is less than the number of airlines with an average airplane age of 11 is:
B. 20%.
<h3>What is a percentage?</h3>
The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:
The percentage of airlines with an average age of 14 years is:
The percentage of airlines with an average age of 11 years is:
The difference is:
33.33% - 13.33% = 20%.
Hence option B is correct.
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Answer:
The statistical conclusion is:
a) Your results are significant; one's willingness to wear masks is not independent of one's age.
Step-by-step explanation:
From this experiment,
The null hypothesis is established as:
H 0 = one's willingness to wear masks is independent of one's age.
The alternate hypothesis is established as:
H 1 = one's willingness to wear masks is not independent of one's age.
In statistics, if the absolute value of the test statistic is greater than the critical value, we declare statistical significance and reject the null hypothesis.
Since the test statistic = 16.5, which is higher than the critical value of 7.82, this establishes statistical significance. Thus, the null hypothesis is rejected.
Therefore, the statistical conclusion is that one's willingness to wear masks is not independent of one's age.
This transformation takes a vector (x,y) and maps it to the vector (x+2, y+16). In other words, it moves the X coordinate of the vector 2 units to the right, and the Y coordinate of the vector is moved 16 units upwards.
If you would take a set of points and apply this transformation, you would see the entire set moving upwards and to the right, with no stretching ou rotating. This type of transformation is called a translation transformation.
Answer:
I have the answer to part A. just do 10,000,000* 1.55 and you should get 15,000,000.
Step-by-step explanation:
We know that
perimeter of the figure=perimeter of semi circle+perimeter of rectangle
so
perimeter of semicircle=2*pi*r/2----> pi*r
diameter=6 yd
radius r=6/2----> r=3 yd
convert to ft
1 yd ------> is equal to 3 ft
3 yd-----> x
x=3*3----> x=9 ft
so
diameter=18 ft
radius=9 ft
perimeter of semicircle=pi*9----> 28.26 ft
perimeter of rectangle=18+15+15----> 48 ft
perimeter of the figure=28.26 ft+48 ft-----> 76.26 ft
the answer is
<span>76.26 ft</span>
