The slope of a trend line that passes through the points (5, 80) and (7, 65) is -7.5.
Step-by-step explanation:
If the line is passing through two points (x1, y1) and (X2, y2). The slope (m) can be calculated using following formula.

In this case,
x1 = 5
x2 = 7
y1 = 80
y2 = 65
By putting the values in formula, we get


or
m = -7.5
Therefore, the slope of a trend line that passes through the points (5, 80) and (7, 65) is -7.5.
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Answer: b
Step-by-step explanation:
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6 years
Step-by-step explanation:
Here,



and we need to find
.
So using the formula
, we can find T by substituting the values


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50 i think
Step-by-step explanation:
Answer:
3/1000 chance
Step-by-step explanation: