A probability experiment is conducted in which the sample space of the experiment is
Sequals=StartSet 6 comma 7 comma 8 comma 9 comma 10 comma 11 comma 12 comma 13 comma 14 comma 15 comma 16 comma 17 EndSet{6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17},
event
Upper F equals StartSet 10 comma 11 comma 12 comma 13 comma 14 comma 15 EndSetF={10, 11, 12, 13, 14, 15},
and event
Upper G equals StartSet 14 comma 15 comma 16 comma 17 EndSetG={14, 15, 16, 17}.
Assume that each outcome is equally likely. List the outcomes in F or G. Find
Upper P left parenthesis Upper F or Upper G right parenthesisP(F or G)
by counting the number of outcomes in F or G. Determine
Upper P left parenthesis Upper F or Upper G right parenthesisP(F or G)
using the general addition rule.
The sample space is S= {6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17}.
The event F= {10, 11, 12, 13, 14, 15}.
The event G= {14, 15, 16, 17}.
Then the outcomes in (F or G) = {10, 11, 12, 13, 14, 15, 16, 17}
Counting number of outcomes:
Let n(A) be the cardinality of set A.
Then
Here n(S) = 12 and n(F or G) = 8.
So
Using Addition Rule:
We have,
And (F and G) = {14, 15}
So,
Under addition rule, we know
Using the above values,
So for both the approach we get that P(F or G) = 0.67.
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