Answer:
By the Empricial Rule, approximately 68% of the 500 scores fell between 80 and 90
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
Approximately 68% of the measures are within 1 standard deviation of the mean.
Approximately 95% of the measures are within 2 standard deviation of the mean.
Approximately 99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Mean = 85
Standard deviation = 5
Approximately what percentage of the 500 scores fell between 80 and 90?
80 = 85 - 5
So 80 is one standard deviation below the mean
90 = 85 + 5
So 90 is one standard deviation above the mean
By the Empricial Rule, approximately 68% of the 500 scores fell between 80 and 90
Answer:
y = 3x + 2
Step-by-step explanation:
If the line is parallel, then the slope remains the same.
To find the y-intercept, just plug the coordinates into the equation
y = 3x + b
14 = 3(4) + b
14 = 12 + b
2 = b
The equation is y = 3x + 2
Answer:
x ∈ ℝ
Step-by-step explanation:
Since this is a constant function, this domain is the set of all real numbers.
Hope this helped! :)
Answer:
Marcus should choose $2,400 plus 3% of sales.
Step-by-step explanation:
hope this helps!
Answer:
d is the answer brainliest?
Step-by-step explanation: