Question

A traffic cop has been determined that (2 %) of drivers checked
to use their mobile phones and (8 %) of drivers checked do not wear
seat belts. In addition, it has been observed that the two
infractions are independent of one another. If the cop stops seven
drivers at random:

a. Calculate the probability that exactly five of the drivers have
committed any one of the two offenses.

b. Calculate the probability that at least one of the drivers
checked has committed at least one of the two offenses.

**There is a trick in the question header that I could not
figure out. I have downloaded this question several times in this
program but everyone answers it wrong. I hope someone can discover
the trick in question and help me find out the answer.**

Answer #1

A traffic cop has been determined that (3%) of drivers checked
to use their mobile phones and (9%) of drivers checked do not wear
seat belts. In addition, it has been observed that the two
infractions are independent of one another. If the cop stops seven
drivers at random:
a. Calculate the probability that exactly five of the drivers
have committed any one of the two offenses.
b. Calculate the probability that at least one of the drivers
checked has...

A traffic cop has been determined that (8 %) of drivers checked
use their mobile phones and (14 %) of drivers checked do not wear
seat belts. In addition, it has been observed that the two
infractions are independent from one another. If the cop stops
seven drivers at random:
a. Calculate the probability that exactly five of the drivers
have committed any one of the two offenses.
b. Calculate the probability that at least one of the drivers
checked...

It has been determined that 15% of drivers checked at a road
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seat belts. In addition, it has been observed that the two
infractions are independent from one another. If an officer stops
seven drivers at random:
Calculate the probability that exactly 4 of the drivers have
committed any one of the two offenses.
Calculate the probability that at least one of the drivers
checked has committed...

It has been
determined that 5% of drivers checked at a road stop show traces of
alcohol
and 10% of drivers checked do not wear seat belts. In addition, it
has been observed that
the two infractions
are independent from one another. If an officer stops five drivers
at
random:
a) Calculate the
probability that exactly three of the drivers have committed any
one
of the two offenses.
b) Calculate the
probability that at least one of the drivers checked...

It has been
determined that 5% of drivers checked at a road stop show traces of
alcohol
and 10% of drivers checked do not wear seat belts. In addition, it
has been observed that
the two infractions
are independent from one another. If an officer stops five drivers
at
random:
a) Calculate the
probability that exactly three of the drivers have committed any
one
of the two offenses.
b) Calculate the
probability that at least one of the drivers checked...

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Chick-fil-A is dominating the U.S. fast-food market. Whereas
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