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Radda [10]
3 years ago
10

Help me fast pleasee

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
4 0

Answer: it's B

step by step explanation: hope this helps

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The Ambell Company uses batteries from two different manufacturers. Historically, 70% of the batteries are from manufacturer 1,
Sunny_sXe [5.5K]

Answer:

0.625

Step-by-step explanation:

Given :

Ambell company uses or procures batteries from two manufacturers.

The life of a battery in critical tool is at = 32 hours

Ambell uses 70% of its batteries from manufacturer 1 and out of that 90% batteries lasts for about 40 hours.

Similarly, 75% of the batteries procured from the manufacturer 2 lasts for about 40 hours.

Therefore, the probability that a battery is form manufacturer 1 is :

$\frac{0.4 \times 0.25}{(0.6 \times0.1)+(0.4 \times 0.25)}$

= 0.625

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45.50(7/10)

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I’m not sure if I remember well but I think it’s the answer!

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