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lara31 [8.8K]
3 years ago
14

Can you answer ASAP PLZ answer with work

Mathematics
1 answer:
luda_lava [24]3 years ago
4 0

Answer:

$43.70

Step-by-step explanation:

90.50 - 4 = 87.50

87.50 ÷ 2 = $43.70

¯\_(ツ)_/¯

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Answer:

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A sample of 40 CDs from a student's collection showed a mean length of 52.74 minutes with a standard deviation of 13.21 minutes.
valentinak56 [21]

Answer:

(48.65, 56.83)

Step-by-step explanation:

Given that :

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Upper limit of confidence interval :

52.74 + (1.96 * 2.0886843) = 56.833821228 = 56.83

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1

Step-by-step explanation:

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