1.
Experimental and theoretical probability
The spinner below shows
equally sized slices (
grey,
white, and
black). Ashley spun the dial
times and
got the following results.
Outcome
Grey
White
Black
Number of Spins
Fill in the table below. Round your answers to the nearest thousandth.
(a) One way to estimate the likelihood of an
event
is to repeat the
experiment
many times. The experimental probability
of the event is the number of times the event occurs divided by the total number of trials of the experiment. In our
problem, we get the following.
Charles Garrett - 04/29/2017 8:20:49 PM EDT
Developmental Math / 1174 MAT104 Spring 2017 – BENJELLOUN - MAT104546VA016-1174-001
(BENJELLOUN)

(b) Assuming that the spinner is fair means assuming that each slice is equally likely to be landed on. We use this to
compute the theoretical probability. (We don't look at the data at all.)