Can’t figure this out REALLY need help
1 answer:
The equation of the circle will be given as
The standard formula of the equation of a circle is expressed as:
where:
- (a, b) is the centre of the circle
- r is the radius of the circle
From the diagram;
centre = (5, 2)
P(x, y) = (9, 5)
Get the radius of the circle:
r = √(4^2+3^2)
r = √16 + 9
r = 5
The equation of the circle will be given as
Learn more on equation of a circle here: brainly.com/question/1506955
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Answer:
Significance of the mean of a probability distribution.
Step-by-step explanation:
- The mean of a probability distribution is the arithmetic average value of a random variable having that distribution.
- For a discrete probability distribution, the mean is given by,
, where P(x) is the probabiliy mass function.
- For a continuous probability distribution, the mean s given by,
, where f(x) is the probability density function.
- Mean is a measure of central location of a random variable.
- It is the weighted average of the values that X can take, with weights given by the probability density function.
- The mean is known as expected value or expectation of X.
- An important consequence of this is that the mean of any symmetric random variable (continuous or discrete) is always on the axis of symmetry of the distribution.
- For a continuous random variable, the mean is always on the axis of symmetry of the probability density function.