Answer: Option 'C' is correct.
Step-by-step explanation:
Since we have given that
Mean score = 96
Sample size = 100
We need to find the distribution of the test scores is likely to be :
In negatively skewed, the mean is to the right side.
It also shows that the tail on the left side is longer than the tail on the right side.
And the bulk value lies in the right of the mean.
In our situation, mean is to the right side and tail is to the left side.
Hence, it is negatively skewed.
Therefore, Option 'C' is correct.
F(x) = x - 2sinx
To find for what values of x graph has tangents we need to differentiate function f(x).
f'(x) = 1-2cosx
Now, if we want to have horizontal tangents we need to make function f'(x) equal to 0 because at minimum or maximum of function f(x) tangent is horizontal.
1-2cosx = 0
cosx = 1/2
x = pi/3 + 2*n*pi and
x = -pi/3 + 2*n*pi
Explanation: cosx = 1/2 for both 60° and -60°. If we make one circle cosx will be equal to 1/2 for 420 and 300 degrees. Writing degrees in radians (using pi) we can write formulas above where 2*pi represents one full circle and n is an integer which represents how many circles we made.
5x=440
×=the number of tickets sold
then you woukd just divide 440÷5=88
88 tickets were sold at the door
X^2/9 +7/3
~I believe this is the answer.
