Zadanie 7d
Hence evaluate the enclosed area, using .
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Hence evaluate the enclosed area, using .
The tangent to g at P is parallel to the graph of f. Find P.
What percentage of R devices are at least 36 months old?
For 500 random selections from R, find the probability that fewer than 160 selected devices are at least 36 months old.
Given that a randomly selected R device is at least 36 months old, find the probability that it is at least 60 months old.
List the five class midpoints in order.
Using the class midpoints, estimate (i) the mean device age; (ii) its variance.
The panels schematically compare centres and spreads; no normal model is assumed. (i) Which panel best represents R and S? (ii) Which network does its solid line represent?
Find (i) f(3); (ii) f(1/9).
Find f−1(x).