4. Which of the following is NOT one of the three ways to express a ratio? a. b. 3:4 c. 3 of 4 d. 3 to 4 5.
2 answers:
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Answer: 11.5%
Explanation:
Since 1 minute = 60 seconds, we multiply 12 minutes by 60 so that 12 minutes = 720 seconds. Thus, we're looking for a probability that the auditor will spend more than 720 seconds.
Now, we get the z-score for 720 seconds by the following formula:
where
So, the z-score of 720 seconds is given by:
Let
t = time for the auditor to finish his work
z = z-score of time t
Since the time is normally distributed, the probability for t > 720 is the same as the probability for z > 1.2. In terms of equation:
Hence, there is 11.5% chance that the auditor will spend more than 12 minutes in an invoice.
Explanation:
Since 1 minute = 60 seconds, we multiply 12 minutes by 60 so that 12 minutes = 720 seconds. Thus, we're looking for a probability that the auditor will spend more than 720 seconds.
Now, we get the z-score for 720 seconds by the following formula:
where
So, the z-score of 720 seconds is given by:
Let
t = time for the auditor to finish his work
z = z-score of time t
Since the time is normally distributed, the probability for t > 720 is the same as the probability for z > 1.2. In terms of equation:
Hence, there is 11.5% chance that the auditor will spend more than 12 minutes in an invoice.
Answer:
number 0
Step-by-step explanation:
The number 0 is a whole number but not a natural number. But we can say that natural numbers contain all the whole numbers except the number 0.
Answer: The percent of the total was spent on veterinarian bills is 27.70% ( approx).
Step-by-step explanation:
Given, In 2011, Americans spent approximately $50.9 billion on their pets.
i.e. Total amount they spent on pets = $50.9 billion
Amount spent for veterinarian bills. = $14.1 billion was for veterinarian bills.
Then, the percent of the total was spent on veterinarian bills would be :
Hence, the percent of the total was spent on veterinarian bills is 27.70% (approx).