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OLEGan [10]
3 years ago
15

Alisson had $55 she spent 3/5 of it then saved the rest.How much money did alisson save

Mathematics
1 answer:
erastovalidia [21]3 years ago
3 0

Answer:

22$

Step-by-step explanation:

1) divide the 55 by 5 to get 11, thats how much 1/5 of 55 is worth

2) multiply by 3 and get 33, thats 3/5 of 55 aka how much was spent

3) Subtract 33 from 55 and get 22, thats 2/5 or the amount she saved

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Answer: (0.9460\ ,\ 0.9500)

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The confidence interval for sample mean is given by :-

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i.e. 0.9480\pm (1.96)\dfrac{0.0060}{\sqrt{35}}

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