NurB78425 NurB78425
  • 03-11-2022
  • Mathematics
contestada

Only need help with finding the mean and standard deviation.

Only need help with finding the mean and standard deviation class=

Respuesta :

RaudelQ559239 RaudelQ559239
  • 03-11-2022

Given

Probability distribution table

Find

Mean and standard deviation

Explanation

mean for probability distribution is given by

[tex]mean=\sum_^xP(x)[/tex]

so , mean

[tex]\begin{gathered} 0+0.25+0.54+0.36+0.64 \\ 1.79 \end{gathered}[/tex]

standaed deviation

[tex]\begin{gathered} \sum_^x^2P(x) \\ 0+0.25+1.08+1.08+2.56 \\ 4.97 \end{gathered}[/tex]

Final Answer

mean = 1.79

standard deviation = 4.97

Answer Link

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