The fill amount of bottles of a soft drink is normally distributed, with a mean of 1.0 liter and a standard deviation of liter. Suppose you select a random sample of 25 bottles. a. What is the probability that the sample mean will be between 0.99 and 1.0 liter? b. What is the probability that the sample mean will be below 0.98 liter? c. What is the probability that the sample mean will be greater than 1.01 liters?

Q: Can you clarify step 3 . I don't understand where you got those numbers.

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