Guidelines for the amount of supplementary nitrogen needed to grow winter wheat depend on the amount of nitrogen in the soil (a
1 answer:
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Answer:
a) Our random variable X="number of tests taken until the individual passes" follows a geomteric distribution with probability of success p=0.25
For this case the probability mass function would be given by:
b)
And adding the values we got:
c)
And we can find the individual probabilities:
Step-by-step explanation:
Previous concepts
The geometric distribution represents "the number of failures before you get a success in a series of Bernoulli trials. This discrete probability distribution is represented by the probability density function:"
Let X the random variable that measures the number of trials until the first success, we know that X follows this distribution:
Part a
Our random variable X="number of tests taken until the individual passes" follows a geomteric distribution with probability of success p=0.25
For this case the probability mass function would be given by:
Part b
We want this probability:
We find the individual probabilities like this:
And adding the values we got:
Part c
For this case we want this probability:
And we can use the complement rule like this:
And we can find the individual probabilities:
Answer:
-1.2
Step-by-step explanation:
Given that the designer also programs a bird with a path that can be modeled by a quadratic function.
The bird starts at the vertex of the path at (0, 20) and passes through the point (10, 8).
If we treat this curve as line joining these two points then we can find the slope by the formula
Slope = change in y coordinate/change in x coordinate
Here the points given are
(0,20) and (10,8)
Slope of the line that represents the turtle's path
=-1.2