standard_description: Approximate the probability of a chance event by collecting data on the chance process that produces it and observing its long-run relative frequency, and predict the approximate relative frequency given the probability. For example, when rolling a number cube 600 times, predict that a 3 or 6 would be rolled roughly 200 times, but probably not exactly 200 times.
problem_activity: Line
$$AC$$
intersects line
$$EB$$
at point
$$F$$
. Ray
$$FD$$
extends from point
$$F$$
. Determine the measures of
$$\angle EFD$$
and
$$\angle CFD$$
.
[IMG]


aligns: no