The lees rented a car for 4 weeks.The santos rented a car for 2 weeks.Whose weekly rentsl cost was lower?
2 answers:
Answer:
Lees have lower weekly rental cost.
Step-by-step explanation:
Consider the total rent of both are same.
Formula for weekly rental cost is
Weekly rental cost is inversely proportional to number of week. It means, more number of weeks represents less rental cost.
It is given that lees rented a car for 4 weeks and santos rented a car for 2 weeks.
Number of weeks of lees is more than the number of weeks of santos.
Hence, lees have lower weekly rental cost.
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Answer:
i) There are 40320 possible orders
ii) There are 336 possible orders for the first 3 positions.
Step-by-step explanation:
Given: The number of finalists = 8
The number of boys = 3
The number of girls = 5
To find the number of sample point the sample space S for the number of possible orders, we need to find factorial of 8!
The number of possible orders = 8!
= 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8
= 40320
ii) From all 8 finalist, we need to choose first 3 position. Here the order is important. So we use permutation.
nPr =
Here n = 8 and r = 3
Plug in n =8 and r = 3 in the above formula, we get
8P3 =
=
= 6.7.8
= 336
So there are 336 possible orders for the first 3 positions.
Answer:
Step-by-step explanation:
The following formula is used to compute the Proportion of error-free units given the sigma level in Excel.
<em> The proportion of error-free units = NORMSDIST(Sigma Level - 1.5) </em>
Suppose that a process is currently operating at a 3.5-sigma quality level.
The proportion of error-free units for this process is
NORMSDIST(3.5 - 1.5) = 0.977250
Therefore, the rejection rate is equal to
or 22750 PPM.
Now, consider a 6-sigma level process.
The proportion of error-free units equals
NORMSDIST(6.0 - 1.5) = 0.9999966
and the rejection rate is
Hence, reduction is PPM required per year , that is
reduction per year