Answer:
a) 54 mph to 144 mph
Step-by-step explanation:
We don't know the shape of the distribution, so we use Chebyshev's Theorem to solve this question. It states that:
At least 75% of the measures are within 2 standard deviations of the mean.
At least 89% of the measures are within 3 standard deviations of the mean.
At least eight-ninths of the player's serves.
8/9 is approximately 89%
So
Mean: 99, standard deviation: 15
99 - 3*15 = 54
99 + 3*15 = 144
So the correct answer is:
a) 54 mph to 144 mph
Answer:
B) Observing how probability works with real items
Step-by-step explanation:
Just took the quiz :)
let
x--------> the monthly fee
y--------> the administration fee
we know that
--------> equation
--------> equation
Multiply by equation
------> equation
Adds equation and equation
Find the value of y
therefore
the answer is
the administration fee is equal to