4% of the lightbulbs produced at Shady Stan's lightbulb factory are defective. An inspector visits the factory and randomly grab
1 answer:
Answer: Mean = 8 and standard deviation is 2.77
Step-by-step explanation:
The mean and standard deviation for a binomial distribution is given by :-
, where n is the sample size and p is the probability of getting success.
Given : The proportion of the lightbulbs produced at Shady Stan's lightbulb factory are defective: p=0.04
Sample size :
Then , the mean and standard deviation for a binomial distribution is given by :-
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Answer:
- The coordinates of the point p are:
Explanation:
1. Name the angle of inclination of the line joining p to the origin α.
2. Find the relation between the coordinates of the point (x,y)
When you draw a line from the origin to the parabola, the intersection point, p(x,y) will have coordinates (x,y).
As per the definition of the tangent trigonometric ratio you have:
From which you can clear y:
Which is the expression of the coordinates of p as a function of the angle of inclination of the line joining p to the origin.