the function f(x)=40x-80 models the number of visitors a website received x days after it was created. Which is the most appropr
1 answer:
You might be interested in
Answer:
75%
88.89%
Step-by-step explanation:
Given :
Mean = 70
Standard deviation = 12
Since the data is said to be extremely skewed, we apply Chebyshev's theorem rather than the empirical rule :
The minimum proportion of observation between 46 and 94
Chebyshev's theorem :
1 - 1 / k²
k = number of standard deviations from the mean
k = (94 - 70) / 12 = 24 / 12 = 2
Hence, we have ;
1 - 1/2²
1 - 1/4
1 - 0.25 = 0.75
Hence, The minimum proportion of observation between 46 and 94 is 75%
Between 36 and 106 :
k = (106 - 70) / 12 ;
k = 36/12 = 3
Hence,
1 - 1/3² = 1 - 1/9 = 8/9 = 0.8888 = 88.89%
The minimum proportion of observation between 34 and 106 is 88.89%
Answer:
<h2>A. -2y+5x/3x-2y</h2>Step-by-step explanation:
Given the complex fraction;
First we will find the LCM of the numerator and the denominator as shown below;
Then we divide both equation by multiplying the numerator by the reciprocal of the denominator as shown;
This gives the required answer