The answer is 8 choices.
To calculate this, a multiplication rule is used. The multiplication
rule calculates the probability that both of two events will occur. In this
method, the possibilities of each event are multiplied.
We have three events occurring together:
1. Orlando has 2 options: to wear either navy blue or black.
2. Orlando has 2 options: to wear a coat with short or long tail.
3. Orlando has 2 options: to wear <span>a solid or striped cummerbund.</span>
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</span>
<span>Using the multiplication rule, the number of choices is multiplied, thus he has in total 8 options:</span>
<span>2 </span><span>· 2 </span><span>· 2 = 8</span>
= 
× 
= 
= 2.5