Frequency density function with F (x) = 0.1 I(0,2] (x) + 0.3I(2,3] (x) + 0.25I(3,5] (x) to metric observation values. Th

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Frequency density function with
F (x) = 0.1 I(0,2] (x) + 0.3I(2,3] (x) + 0.25I(3,5] (x)
to metric observation values. Then: RF
Item 10 more than 45% of all observation values are less than or
equal to 3, true
item 11 30% of all observations are in the interval (2, 3].
false
Be F (x) the corresponding (approximative)
Distribution function and F (x) the derivative of it (in
differentiable places). Then:
Item28 𝐹n(𝑥)=0.2+0.3𝑥 für2<𝑥≤3, true or false
Item 29 𝐹n′(4) = 0.25. true or false