MATH221 Week 2 Quiz | Questions & Answers
(Complete Solutions 100% Correct)
What is the probability that the next person chosen will be in the 18-29 or 30-39 age
groups? - ✔✔42.5%
(CO 2) When children roll a die for a game, their probability of rolling a 5 is 17%. This is
an example of which type of probability? - ✔✔Classical probability
(CO 2) Consider the table below.
Age Group-------------------------------Frequency
18-29----------------------------------------9831
30-39---------------------------------------7845
40-49---------------------------------------6869
50-59---------------------------------------6323
60-69---------------------------------------5410
70 and over---------------------------------5279
What is the complement of P(30-49), or P(30-49')? - ✔✔64.6%
(CO 2) You are selling your product at a three-day event. Each day, there is a 60%
chance that you will make money. What is the probability that you will make money on
the first two days and lose money on the third day? - ✔✔0.144
(CO 2) Consider the table below.
, -------------------Profit-----------Loss-----------Total
Urban location---50---------------38------------88
Rural location----61----------------94------------155
Total--------------111---------------132------------243
Find the probability that a randomly selected location is in a rural location, given that it
is profitable. - ✔✔55.0%
(CO 2) Consider the table below.
Production location------Correct-----Defective-----Total
East------------------------258----------31-------------289
West-----------------------572----------106------------678
North----------------------755----------94-------------849
South----------------------491-----------74-------------565
Total-----------------------2076--------305-------------2381
Find the probability that a randomly selected product is defective, given that it is from
the East production - ✔✔10.7%
(CO 2) Classify these events. Selecting a king from a deck of cards, replacing it and
selecting a queen from the same deck. These events would be considered: -
✔✔Independent
(CO 2) Classify these events. Some customers purchase lots of items and some
customers use shopping carts. These events would be considered: - ✔✔Dependent
(Complete Solutions 100% Correct)
What is the probability that the next person chosen will be in the 18-29 or 30-39 age
groups? - ✔✔42.5%
(CO 2) When children roll a die for a game, their probability of rolling a 5 is 17%. This is
an example of which type of probability? - ✔✔Classical probability
(CO 2) Consider the table below.
Age Group-------------------------------Frequency
18-29----------------------------------------9831
30-39---------------------------------------7845
40-49---------------------------------------6869
50-59---------------------------------------6323
60-69---------------------------------------5410
70 and over---------------------------------5279
What is the complement of P(30-49), or P(30-49')? - ✔✔64.6%
(CO 2) You are selling your product at a three-day event. Each day, there is a 60%
chance that you will make money. What is the probability that you will make money on
the first two days and lose money on the third day? - ✔✔0.144
(CO 2) Consider the table below.
, -------------------Profit-----------Loss-----------Total
Urban location---50---------------38------------88
Rural location----61----------------94------------155
Total--------------111---------------132------------243
Find the probability that a randomly selected location is in a rural location, given that it
is profitable. - ✔✔55.0%
(CO 2) Consider the table below.
Production location------Correct-----Defective-----Total
East------------------------258----------31-------------289
West-----------------------572----------106------------678
North----------------------755----------94-------------849
South----------------------491-----------74-------------565
Total-----------------------2076--------305-------------2381
Find the probability that a randomly selected product is defective, given that it is from
the East production - ✔✔10.7%
(CO 2) Classify these events. Selecting a king from a deck of cards, replacing it and
selecting a queen from the same deck. These events would be considered: -
✔✔Independent
(CO 2) Classify these events. Some customers purchase lots of items and some
customers use shopping carts. These events would be considered: - ✔✔Dependent
