Consider a uniform density curve defined from x = 0 to x = 8. What percent of observations fall between 1 and 5?
1 answer:
Answer: 0.50, which is choice b
Explanation:
The interval covers 5-1 = 4 units in the horizontal direction.
This is out of 8 units that span from x = 0 to x = 8 (we could say 8-0 = 8).
So we get the final result of 4/8 = 0.50
In other words, the interval from x = 1 to x = 5 covers exactly half of the interval from x = 0 to x = 8.
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Answer:
Step-by-step explanation:
In general,
Substitute x = 2, y = 15
(1) <u />
Substitute x = 1, y = 5
(2)
Divide equation (1) by equation (2)
3 = b
Now substitute b = 3 in equation (2) to find k
5 = k(3)
Since we know the values for k and b, we now have the exponential function that passes thru (1, 5) and (2, 15)