Respuesta :
Answer:
11.5
The sample standard deviation measures the spread of a data distribution of the sample. It is usually used to estimate the population standard deviation
The standard deviation of the given data is rounded to the nearest hundredth will be 10.2.
What is the standard deviation?
It is a measurement of statistical data dispersion. The degree to which the value varies is known as standard deviation.
Count, N = 5
Sum, Σx: 660
σ is the standard deviation
The mean of the data is x ;
μ = (147+141+120+124+128)/5
μ= 132
Mean, μ: 132
The standard deviation is found as;
[tex]\rm \sigma = \sqrtr{\frac{(x_1-\mu)^2+(x_2-\mu)^2 +(x_3-\mu)^2+(x_4-\mu)^2+(x_5-\mu)^2}{n-1}}\\\\ \sigma =\sqrtr{\frac{(147-132)^2+(141-132)^2 +(120-132)^2+(124-132)^2+(128-132)^2}{5-1}}\\\\ \sigma = 10.2[/tex]
Hence, the standard deviation of the given data is 10.2
To learn more about the standard deviation, refer to: https://brainly.com/question/16555520
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