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Lemur [1.5K]
3 years ago
13

Listed below are amounts​ (in millions of​ dollars) collected from parking meters by a security service company and other compan

ies during similar time periods. Do the limited data listed here show evidence of stealing by the security service​ company's employees? Security Service Company: 1.4 1.6 1.7 1.6 1.5 1.6 1.6 1.5 1.4 1.8 Other Companies: 1.5 1.8 1.6 1.9 1.7 1.9 1.8 1.7 1.7 1.6 Find the coefficient of variation for each of the two​ samples, then compare the variation.
Mathematics
1 answer:
Vikentia [17]3 years ago
6 0

Answer:

CV=\frac{0.1252}{1.57}=0.07975

CV=\frac{0.1317}{1.72}=0.07657

The relative variability is almost equal in both samples a slight greater variability can be noticed in the first sample.

Step-by-step explanation:

The coefficient of variation of a sample is defined as the ratio between the mean standard deviation and the sample mean. And it represents the percentage relation of the variation of the data with respect to the average.

CV=\frac{S}{\bar X}

In the case of the first sample you have:

CV=\frac{0.1252}{1.57}=0.07975

In the case of the second sample you have:

CV=\frac{0.1317}{1.72}=0.07657

The relative variability is almost equal in both samples a slight greater variability can be noticed in the first sample.

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natita [175]

Answer:

y= 1.5x

Step-by-step explanation:

The y-intercept is 0 so we don't put anything there. The slope is 1.5. You can find the slope by using rise and run.

8 0
3 years ago
How many 2-digit numbers can be formed from the digits 1 through 8 if each digit is only used once?
SVEN [57.7K]

Answer:

56.

Step-by-step explanation:

That is the number of permutations of 2 from 8

= 8P2

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= 8!/6!

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6 0
3 years ago
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nadya68 [22]
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8 0
3 years ago
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NEED HELP ASAP!!!! PLEASEEE
nikdorinn [45]

The first answer of the missing blank is 4/5.

The second answer of the missing blank is 2.

The third answer of the missing blank is 25.

*For all of these solutions, I will be using the common rules for logarithms.*

Solution for the first question:

Log9^4/5 must equal log9^4-log9^5, or it could also equal the more proper version, which is simplified: 2log9^2-log9^5.

Solution for the second question:

Log3^22 must equal log3^11+log3^2, if you break it down.

Solution for the third question:

Log9^25 must equal 2log9^5 because it will be like this when simplifying it:

log9^25=2log9^5

log9^5²=2log9^5

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These are all of the step-by-step procedures for all three of these given questions. Anyways, I hope that this helped you!

5 0
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1. Which of the following does NOT represent a whole number? 9 6.0 12/4 -12/3​
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