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3 years ago

15

At the fair,Kate found a strange machine with a sign on it labeled, enter a number. When she pushed the number 15, the machine d

isplayed 17. Perplexed she tried 100, and the machine displayed 94. What is the machine doing?

1 answer:

Ivan3 years ago

6 0

apparently subtracting 6

15-6=9

23-6=17

100-6=94

77-6=71

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Answer:

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Step-by-step explanation:

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Answer:

The 99 % confidence interval on the basis of mean is ( 21.7393 ; 22.0257)

Step-by-step explanation:

Mean = Sum of observations / Number of observations

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s= 478.881- (21.8825)²= 478.881-478.843= 0.037

The confidence limit 99% for the mean will be determined by

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Putting the values in the above equation

= 21.8825 ± 2.58 √0.037/12

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Multiplying the square root with 2.58

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3 years ago

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andreyandreev [35.5K]

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Step-by-step explanation:

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Answer:

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= 26x³ - 12x² + 5x + 7

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