Orlando is renting a tuxedo for the school formal. he has narrowed his choices down by deciding to wear either navy blue or black. now he must decide on a coat with short or long tail and a solid or striped cummerbund. how many choices does orlando have?

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 a solid or striped cummerbund.

Using the multiplication rule, the number of choices is multiplied, thus he has in total 8 options:

2 · 2 · 2 = 8

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