Pickup trucks in a survey, 510 adults were asked if they drive a pickup
truck and if they drive a ford. the results showed that one in six adults
surveyed drives a pickup truck, and three in ten adults surveyed drive a ford.
of the adults surveyed that drive fords, two in nine drive a pickup truck.
5) find the probability that a randomly selected adult drives a pickup truck.
given that the adult drives a ford.
find the probability that a randomly selected adult drives a ford and
drives a pickup truck. -
are the events "driving a ford" and "driving a pickup truck" independent
or dependent? explain.
what do you drive?
aduits surveyed
adults
who drive!
pickup
trucks
adults
who drive
fords
summer vacation the table shows the results of a survey in which 146
families were asked if they own a computer and if they will be taking a
summer vacation during the current year.
summer vacation this year
yes
no
:
total
own
a
yes
no
.
14
• computer i total
115
31
17
101
45
146
8 find the probability that a randomly selected family is not taking a
summer vacation this year.
9) find the probability that a randomly selected family owns a computer.
10) find the probability that a randomly selected family is taking a summer
vacation this year, given that they own a computer.
11 find the probability that a randomly selected family is taking a summer
vacation this year and owns a computer.
12) are the events "owning a computer" and "taking a summer vacation this
year" independent or dependent events? explain.
people who can wiggle their ears in a sample of 1000 people, 130 can wiggle
their ears. two unrelated people are selected at random without replacement.
159) find the probability that both people can wiggle their ears.
find the probability that neither person can wiggle his or her ears.
15) find the probability that at least one of the two people can wiggle his or
her ears.