Suppose riley is interested in the cost of a gallon of gas in her state. she finds the cost of a gallon of regular gas at 61 randomly selected gas stations and calculates the mean price of gas to be $2.62. the standard error of the mean is $0.05. what is the standard deviation of the sample ( )? round your answer to two decimal places.

The standard deviation of the sample is 0.0064.

Step-by-step explanation:

The standard deviation of a sample of length n of a population with standard deviation is given by the following formula:

In this problem, we have that:

61 randomly selected gas stations. This means that

The standard error of the mean is $0.05. This means that .

What is the standard deviation of the sample?

The standard deviation of the sample is 0.0064.

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step-by-step explanation:

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.