Español Petroleum pollution in oceans stimulates the growth of certain bacteria. An assessment of this growth has been m

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Espanol Petroleum Pollution In Oceans Stimulates The Growth Of Certain Bacteria An Assessment Of This Growth Has Been M 1 (204.26 KiB) Viewed 92 times

Español Petroleum pollution in oceans stimulates the growth of certain bacteria. An assessment of this growth has been made by counting the bacteria in each of 5 randomly chosen specimens of ocean water (of a fixed size). The 5 counts obtained were as follows. 43, 54, 64, 56, 43 Send data to calculator Find the standard deviation of this sample of numbers. Round your answer to two decimal places. (If necessary, consult a list of formulas.) Dictionary Х Standard deviation Noun Phrase. (Statistics.) The standard deviation of a data set is an indication of the "dispersion or the "sprea standard deviation is the square root of an average of the squared deviations of the measurements tend to deviate from their mean, the greater the standard deviation. The calculation for the standard deviation depends on whether the measurements co measurements comprise a sample, then the calculation involves division by 1-1, an the calculation involves division by n. The two definitions follow. Definitions: Suppose that the n measurements X1 X2, x make up a sample. Then the samp 71 (4-5 (1, -2)* +(13 ->)*+...+(2,-5) S 2= 1 71-1 n-1 in which x is the (sample) mean of the measurements. Suppose that the n measurements X1 X2: to be - make up a population. Then the pop 122 Σ ( (3,-2) (1-1)+(x2 - ) +...+(1-1) 39 -7°= (5x) i = 1 32