Question

1. The following results were obtained in analysis of iron ore for iron: 34.79%, 34.86%, 34.80%, 34.53% and 34.76% Calculate the Standard Deviation for the analysis ​

Answer 1

Standart Deviation Steps:

1. Work out the mean (the simple average of the numbers).

2. Then for each number: subtract the mean and square the result.

3. Then work out the mean of those squared differences.

4. Take the square root of that.

Result:

Number of Elements in Array: 5

Series Average: 34,748

Median: 34,795

Smallest Number: 34,53

Biggest Number: 34.86

Standard Deviation: 0.12716131487209

Variance (Standard Deviation): 0.01617

Standard Deviation of the Population: 0.1137365376649

Variance (Standard Deviation of Population): 0.012936