Find the midpoint of the line segment joining the points P = (-7,1) and Q = (5,-7)
1 answer:
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Find the z-scores for the two scores in the given interval.
For the score x =391,
.
For the score x = 486,
Now you want the area (proportion of data) under the normal distribution from z = -1 to z = 0. The Empirical Rule says that 68% of the data falls between z = -1 to z = 1. But the curve is symmetrical around the vertical axis at z = 0, so the answer you want is HALF of 68%.
For the score x =391,
For the score x = 486,
Now you want the area (proportion of data) under the normal distribution from z = -1 to z = 0. The Empirical Rule says that 68% of the data falls between z = -1 to z = 1. But the curve is symmetrical around the vertical axis at z = 0, so the answer you want is HALF of 68%.
Answer:
(-3, -7)
Step-by-step explanation:
Let
The midpoint coordinates of any two points
and
are given by
and
Since B is the midpoint of AC
Since E is the midpoint of B and D and we are given the coordinates of E as (-4,-3). it follows that
Therefore
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