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hannmq4179
04.11.2019 •
Mathematics
The daily revenue at a university snack bar has been recorded for the past five years. records indicate that the mean daily revenue is $2700 and the standard deviation is $400. suppose that 100 days are randomly selected. what is the probability that the average daily revenue of the sample is higher than $2600?
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Ответ:
0.9938
Step-by-step explanation:
Let x be the random variable that represents the daily revenue at a university snack bar.
As per given , we have
Using formula
,
z-score for x= 2600
The probability that the average daily revenue of the sample is higher than $2600 :
Therefore, the probability that the average daily revenue of the sample is higher than $2600 = 0.9938
Ответ:
Explanation: If one Canadian dollar bill is $1.00 and a Trinidad’s $1.00 is $2.73 then that means if you wanna convert it you have to double the amount including the €73 and you have 2,500 you need to double the amount then add the remaining €73.