Rewrite 4a + 7a using the Distributive Property.
1 answer:
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Answer:
The proportion of individuals score at most 74 points on this test is 70%.
Step-by-step explanation:
The complete question is:
Suppose that the scores on a reading ability test are normally distributed with a mean of 70 and a standard deviation of 8. What proportion of individuals score at most 74 points on this test? Round your answer to at least four decimal places.
Solution:
Let <em>X</em> represent the scores on a reading ability test.
It is provided that .
Compute the probability that an individuals score is at most 74 points on this test as follows:
Thus, the proportion of individuals score at most 74 points on this test is 70%.
Answer:
Option (4)
Step-by-step explanation:
Slope a line passing through two points and
is given by,
m =
Since, blue line is passing through two points (-4, -2) and (0, 4),
Slope of the blue line =
=
Similarly, green line is passing through two points (-4, 1) and (0, -2),
Slope of the green line =
=
Since,
Neither these slopes are opposite reciprocals.
Therefore, both the lines are neither parallel nor perpendicular.
Option (4) will be the correct option.