What is the difference?
1 answer:
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Answer:
D.]
Step-by-step explanation:
We will find the standard deviation and variance:
Variance= E-[
E[x] = 3.462
E[{x}^2]= 31.86
Var(x)= 31.86-(3.462)^2 = 28.4
Standard deviation =
=
= 5.833 = 6(aproximately)
Therefore, the chances of winning are equal in each lane.
Answer:
Step-by-step explanation:
Given:
Right ∆ with,
Hypotenuse = x
Opposite = 9
Reference angle = 39°.
Required:
The value of x
Solution:
Since we are given a reference angle with opposite length, and we are to find the hypotenuse length, x, apply the following trigonometric ratios formula:
Plug in the values into the equation
Multiply both sides by x
Divide both sides by sin(39)
(to 2 decimal places)