Answer: 0.00067 minutes
Step-by-step explanation: if the proportion of customers who wait more than 15 minutes is 0.01, then the time interval between each waiting customer 15/0.01 = 1500 minutes.
The distribution that defines this question is that of an exponential.
An exponential distribution is dependent on the fixed time rate at which the event is occurring (λ)
For this question of ours, λ = 1500 minutes.
The mean of an exponential distribution is given as
u = 1/ λ = 1/1500 = 0.00067 minutes.
Answer:
Step-by-step explanation:
Correlation describes how strongly pairs of given variablé are related. In this case, a detailed analysis that was carried out shows that the number of days missed by employees explains 60% of the variation in salary increases and also impressed upon this fact that employees who missed more days of work during the year received smaller raises than those who missed fewer days.
From the analysis, we can draw a conclusion that there is a correction between days missed and variation in salary increase and that this type of correction is a negative correlation where an increase in the number of days missed will lead to a decrease in the raises awarded to each employee.
Answer:
I think 4 number is correct
Answer:
,
is inconsistent.
Step-by-step explanation:
Two linear equations are inconsistent when each group of coefficients associated with each variable have the same multiple and independent coefficients are different and have the same multiple. Since, the set of variables is
, then the following condition must be observed:
(1)
(2)
(3)
(4)
Now we proceed to check each option:
Option 1:
, ![2\cdot x - y = 7](https://tex.z-dn.net/?f=2%5Ccdot%20x%20-%20y%20%3D%207)
(
,
,
,
)
,
(This system is not inconsistent)
Option 2:
, ![4\cdot x -y = -2](https://tex.z-dn.net/?f=4%5Ccdot%20x%20-y%20%3D%20-2)
(
,
,
,
)
,
(This system is not inconsistent)
Option 3:
, ![4\cdot x - 2\cdot y = 6](https://tex.z-dn.net/?f=4%5Ccdot%20x%20-%202%5Ccdot%20y%20%3D%206)
(
,
,
,
)
,
(This system is not inconsistent)
Option 4:
, ![6\cdot x -10\cdot y = 14](https://tex.z-dn.net/?f=6%5Ccdot%20x%20-10%5Ccdot%20y%20%3D%2014)
(
,
,
,
)
,
(This system may be inconsistent)
(
,
)
(This system is inconsistent)
Answer:
y = x + 2
Step-by-step explanation:
Used slope formula to get a slope of 1
Line crosses y axis at (0,2)