Answer:
Answers are below
Step-by-step explanation:
M is the slope of the line on a graph. b is the y-intercept of the line, where the line crosses the y-axis. x is the input, or x-values of the graph that are used on the line. y is the output, or y-values that result from the slope multiplying with the x-values added to the b.
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The exponential distribution is:
where
The probability we want is how likely will a dvd player last more than 8 years, given it has already lasted 5 years
To find this, you use conditional probability.
where A is P(x>8) and B is P(x>5)
To find these probabilities, integrate over the distribution:
Sub into conditional probability formula:
Final Answer: Given a dvd player is more than 5 years old, the probability that it will last another 3 more years is about 54.9%
Answer:
x = 4
Step-by-step explanation:
6 : 4.5 = 4 : 3
x : 3 = 4: 3
x= 4
You subsitute 11-2y/7 when you do that you get -2 11-2y/7 +3y=29: y=9 isolate y -2 11-2y/ +3y=29 y=9
x= 11-2 . 9/7 x= -1
Y=9 X=-1