TyWarren7479 TyWarren7479
  • 08-05-2024
  • Mathematics
contestada

Find the number such that the proportion of observations that are less than x in a normal curve with μ = 20 and σ = 5 is 0.55.
a) 19.5
b) 21.2
c) 22.8
d) 24.5

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