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umka21 [38]
3 years ago
6

How can you rewrite P(z £ –1.75) in order to find the answer? P(z £ 1.75) P(z ³ -1.75) 1 - P(z £ -1.75) 1 - P(z £ 1.75)

Mathematics
2 answers:
Fudgin [204]3 years ago
5 0
To rewrite it the answer is 1-P(z 1.75) D

lawyer [7]3 years ago
3 0

Answer:

Option d is the right answer.

Step-by-step explanation:

Given that X, the life of a certain brand of battery is normally distributed, with mean 128 hours and standard deviation 16 hours.

Required probability = Prob that a battery you buy lasts at most 100 hours

=P(X<100)

Convert x into z

as

Z = \frac{100-128}{16} \\=-1.75

Required proba

= P(X

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Answer:

{-3/2, 4}

Step-by-step explanation:

Use synthetic division here.  If the remainder is 0, then the divisor is a root or solution.

Here we have x = -4.  Perform the synthetic division as follows:

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------------------------------

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Try -3/2 as divisor this time:

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------------------------------

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Show in the same manner that 4 is a solution also.  Or determine whether x - 4 satisfies 4x - 16 = 0 (it does).

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