There are 25 different varieties of flowering plants found in a natural habitat you are studying. You are asked to randomly select 5 of these flowering plant varieties to bring back to your laboratory for further study.
How many different combinations of are possible? That is, how many possible 5 plant subgroups can be formed out of the 25 total plants found?
A person is tossing a fair, two-sided coin three times and recording the results (either a Heads, H, or a Tails, T). Let E be the event that exactly two heads are tossed.
Which of the following sets represent the event E?
Group of answer choices
{HHT, HTH, THH}
{HHT, THH}
{HHH, HHT, HTH, THH, TTT, TTH, THT, HTT}
{HH}
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54m
Exit
Let the universal set be whole numbers 1
through 20 inclusive. That is,
U = {1, 2, 3, 4, . . ., 19, 20}. Let A, B, and C
be subsets of U.
Let A be the set of all prime numbers:
A = {2, 3, 5, 7, 11, 13, 17, 19}
Let B be the set of all odd numbers:
B = {1,3,5,7,
•
• ,
17, 19}
Let C be the set of all square numbers:
C = {1,4,9,16}
☐ Question 2
3 pts
Which of the following statement(s) is
true? Select all that apply.
(1) АСВ
(2) A and C are disjoint (mutually exclusive) sets.
(3) |B| = n(B) = 10
(4) All of the elements in AC are even numbers.
☐ Statement 1 is true.
Statement 2 is true.
Statement 3 is true.
Statement 4 is true.
College Algebra with Modeling & Visualization (5th Edition)
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