Answer:
So then the best answer for this case would be:
C. 2.78
Step-by-step explanation:
For this case we have the following probabability distribution function given:
Score P(X)
A= 4.0 0.2
B= 3.0 0.5
C= 2.0 0.2
D= 1.0 0.08
F= 0.0 0.02
______________
Total 1.00
The expected value of a random variable X is the n-th moment about zero of a probability density function f(x) if X is continuous, or the weighted average for a discrete probability distribution, if X is discrete.
If we use the definition of expected value given by:
And if we replace the values that we have we got:
So then the best answer for this case would be:
C. 2.78
Answer: The x-intercept is where a line crosses the x-axis, and the y-intercept is the point ... Thinking about intercepts helps us graph linear equations. ... Looking at the graph, we can find the intercepts. ... We're asked to determine the intercepts of the graph described by the following linear equation: ... Applying intercepts and slope.
Step-by-step explanation:
Answer:
Yes
Reason/Explanation
This equation represents a proportional relationship because the graph of the equation is a straight line passing through the origin.
Hope this helps :P
Answer: n=75
Step-by-step explanation:
1/5 times 75 equals to 15
Answer:
A and B and E
Step-by-step explanation:
because u always double check
