2.59 that’s the correct answer
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:
1/4 = 3/12 = 1/12+1/12+1/12
Step-by-step explanation:
Because 1/4 equals 3/12.
Answer:
3.2 x 108
Step-by-step explanation:
it just is lol. also the 8 is to the power of ten
