You Answer Is 32X21
4x7=28. 8x3=24
28x24=672
32x21=672
1 x60
2 x 30
3 x20
4x15
5x12
6x10
1- x -60
-2 x -30
-3 x -20
-4 x -15
-5 x -12
-6 x -10
The scale factor is 2
x = 11.5
14/7 = 2
23/x = 2
x = 11.5
Answer:
0.4
Step-by-step explanation:
Let X be the random variable that represents the number of consecutive days in which the parking lot is occupied before it is unoccupied. Then the variable X is a geometric random variable with probability of success p = 2/3, with probability function f (x) = [(2/3)^x] (1/3)
Then the probability of finding him unoccupied after the nine days he has been found unoccupied is:
P (X> = 10 | X> = 9) = P (X> = 10) / P (X> = 9). For a geometric aeatory variable:
P (X> = 10) = 1 - P (X <10) = 0.00002
P (X> = 9) = 1 - P (X <9) = 0.00005
Thus, P (X> = 10 | X> = 9) = P (X> = 10) / P (X> = 9) = 0.00002 / 0.00005 = 0.4.
The given data are:
70% of single-vehicle traffic fatalities that occur at night on weekends involve an intoxicated driver. If a random sample of 15 single-vehicle traffic fatalities that occur at night on a weekend is selected, the probability that 11 involve a driver who is intoxicated is:
(11/15) * 0.70 = 0.513
