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d1i1m1o1n [39]
3 years ago
10

I need Answer pls plz pls pls

Mathematics
1 answer:
Fofino [41]3 years ago
3 0

Answer:

±square root 20

Step-by-step explanation:

x²= 20

x= square root 20

x= 2 square root 5

x≈ 4.4721

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

We know mean u = 38  standard dev. s = 2

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so

P( (37 - 38) / 2 <  Z) =  P(-0.5 < Z)  

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P(-0.5 < Z < 1.5) =  0.6247

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