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ZanzabumX [31]
3 years ago
11

amina bout an air cooler for a AED 3300 including VAT of 5% find the price of the air cooler before VAT was added

Mathematics
1 answer:
Olenka [21]3 years ago
8 0
Cost of air cooler:-3,300
vat added:- 5%
so, price before vat was added:-5/100×3,300=AED165
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Tenemos 75 postulantes, y sus notas están en el rango desde 16 hasta 20.

1) si el grupo es homogéneo y todos tienen la misma nota, entonces todos van a tener la nota media en el rango (16, 20)

Para encontrar esta nota calculamos la suma entre ambos extremos y lo dividimos por 2.

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2) entre 16 y 20 tenemos:

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tenemos 5 notas distintas, entonces si agrupamos a los estudiantes por nota, tendríamos 5 grupos.

3) En una distribución normal, el grupo mas grande debería coincidir con la media del intervalo. Ya sabemos que la media es 18, entonces es esperable que la nota del grupo mas grande sea 18.

4) Si los estudiantes se ordenan en fila según notas tendríamos:

Fila con nota 16

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fila con nota 19

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Podemos ver que la fila del medio es el grupo con nota de 18

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3 years ago
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Hello!

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