How do you figure this out? I am having a hard time. The variables x and y are related to proportionally. When x = 8, y = 20. Fi
1 answer:
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We can use the point-slope equation:
m, the slope, is 3/4:
To find b, we plug in the point (4,1/3):
Therefore, the point-slope equation is
Now we have to see which answer matches.
Since this is not the same, we try the next one.
This is the same, so this is the answer. We should still double-check the other answers.
This one is not equivalent.
This one also does not work.
The answer is the second one:
m, the slope, is 3/4:
To find b, we plug in the point (4,1/3):
Therefore, the point-slope equation is
Now we have to see which answer matches.
Since this is not the same, we try the next one.
This is the same, so this is the answer. We should still double-check the other answers.
This one is not equivalent.
This one also does not work.
The answer is the second one:
Answer:
(a) 93.19%
(b) 267.3
Step-by-step explanation:
The population mean and standard deviation are given as 502 and 116 respectively.
Consider, <em>X</em> be the random variable that shows the SAT critical reading score is normally distributed.
(a) The percent of the SAT verbal scores are less than 675 can be calculated as:
Thus, the required percentage is 93.19%
(b)
The number of SAT verbal scores that are expected to be greater than 575 can be calculated as:
So,
Out of 1000 randomly selected SAT verbal scores, 1000(0.2673) = 267.3 are expected to have greater than 575.