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alekssr [168]
3 years ago
12

If the mean of 5 numbers is 10 and the mean of other 15 numbers is 20 , what is the combined mean of both 20 numbers​

Mathematics
1 answer:
Elis [28]3 years ago
4 0

9514 1404 393

Answer:

  17.5

Step-by-step explanation:

The sum of the 5 numbers is 5·10 = 50.

The sum of the 15 numbers is 15·20 = 300.

The sum of all 20 numbers is then 50+300 = 350, so their mean is ...

  mean = sum/number = 350/20 = 17.5

The combined mean of the 20 numbers is 17.5.

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Respuesta:

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Explicación paso a paso:

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Datos pedidos: 23, 25, 28, 28, 32, 33, 35

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16,24,26,26,26,27,28

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Q1 = 1/4 * 8 = 2do = 24

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