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Fda bag contains five batteries, all of which are the same…

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Fda bag contains five...

Fda bag contains five batteries, all of which are the same size and are equally likley to be selected. each battery is a diffrent brand. if you select four batteries at random, use the counting principle to determine how many points will be in the sample space if the batteries are selected

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Submitted: 3 months ago.Category: Math Homework
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Answered in 8 minutes by:
3/30/2018
Math Tutor or Teacher: Brad Summers,
 replied 3 months ago
Brad Summers
Category: Math Homework
Satisfied Customers: 57
Experience: Mathematics Teacher at Baldivis Secondary College
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Hi, here is the solution:

The 1st battery can be selected in 5 ways

The 2nd in 4 ways

the 3rd in 3 ways

the 4th in 2 ways

Using the counting principle we have a total of 5*4*3*2 = 120 points in the sample space

Answer: 120

Thanks

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Customer reply replied 3 months ago
The answer was wrong can you call please ?
Math Tutor or Teacher: Brad Summers,
 replied 3 months ago

So answer 120 is wrong ?

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Math Tutor or Teacher: Brad Summers,
 replied 3 months ago

Since the exercise says to use counting principle i think the order is important and the answer is 120

But if you say that 120 is wrong maybe the right result (if order is not important) is 5C4 = 5

Answer: 5

Let me know....

Thanks

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