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anastassius [24]
3 years ago
6

Does anybody know the answer. 51 - 3 + 5k = 58

Mathematics
1 answer:
swat323 years ago
3 0

Answer:

k=2

Step-by-step explanation:

1. 48+5k=58

2. 5k=58-48

3. 5k=10

4. k=10/5

5. k=2

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Answer:

0.0039 is the probability that the sample mean hardness for a random sample of 12 pins is at least 51.

Step-by-step explanation:

We are given the following information in the question:

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Standard Deviation, σ = 1.3

Sample size, n = 12

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