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monitta
2 years ago
13

Please help and thank you!

Mathematics
2 answers:
Arte-miy333 [17]2 years ago
6 0

Answer:

1/10

Step-by-step explanation:

Strike441 [17]2 years ago
6 0
1/10 I think bc the total is 10 and if she select 1 it’s going to be 1/10
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Four students have summer jobs. The table shows how much each student earns after working a certain number of hours. Which stude
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Step-by-step explanation:

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3 years ago
Suppose that a sample of size 100 is to be drawn from a population with standard deviation L0. a. What is the probability that t
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Answer:

The probability that the sample mean will lie within 2 values of μ is 0.9544.

Step-by-step explanation:

Here

  • the sample size is given as 100
  • the standard deviation is 10

The probability that the sample mean lies with 2 of the value of μ is given as

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Here converting the values in z form gives

P(-2

Substituting values

P(-2

From z table

P(z\leq 2)=0.9772\\P(z\leq -2)=0.0228\\P(-2\leq z\leq 2)=P(z\leq 2)-P(z\leq -2)\\P(-2\leq z\leq 2)=0.9772-0.0228\\P(-2\leq z\leq 2)=0.9544\\

So the probability that the sample mean  will lie within 2 values of μ is 0.9544.

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3 years ago
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