(sum/n-1) Standard deviation (Square root of variance) Example of standard deviation calculation for the three 5 ml trials. Sample ID 5 ml pipetted water sample Measured Deviation Trial 1 Trial 2 Trial 3 Average Sum of squares Variance Standard deviation mass 6000 5400 3500 4967 1033 433 -1467 Deviation squared 1067089 187489 2152089 3406667 1703333 1305

Suppose a certain species of fawns between 1 and 5 months old have a body weight that is approximately normally distributed with mean μ=28.6  kilograms and standard deviation σ=3.7 kilograms. Let x be the weight of a fawn in kilograms. Convert the following z interval to a x interval. 2.7 < z Choices x < 18.61 x < 38.59 x > 38.59 x > 18.61 x -38.59

If you measure a quantity four times and the standard deviation is 1.0% of the average, can you be 90% confident that the true value is within 1.2% of the measured average?

Calculate the standard deviation of the four trials below.  Trial 1: 49.59 grams Trial 2: 51.25 grams Trial 3: 49.78 grams Trial 4: 50.19 grams

A powder was prepared containing 3.00% NaCN and 97.00% NaCl. A sample obtained from that mixture containing 7.374×10^5 particles weighs 10.0 g. Determine the number and percent relative standard deviation of NaCN particles from a sample of the mixture weighing 6.30 g. I need nNaCN particles and %RSD

Use appropriate statistical tests to determine whether the results of replicatemeasurements (average ± standard deviation given below) by two methods are the sameor different at the 95% confidence level. Method A: 624.6 ± 0.8 (n = 10)Method B: 621 ± 3 (n = 5)

Explain the difference between the propagated uncertainty and the standard deviation. Which number would you use to describe the uncertainty in the measurement? if the standard deviation is 0.01 and the propagated uncertainty is 0.03

Q 1 thank you!

Please help me find the standard deviation for the given data.

Use a spreadsheet to calculate the mean and standard deviation of the data set. 54.99, 54.40, 54.60, 54.63, 54.36 The figure shows a suggested setup for your spreadsheet, where you enter the data in the highlighted cells and enter formulas in cells C4:D8 and B9:B11 to carry out the appropriate calculations. mean: standard deviation: