1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Angelina_Jolie [31]
3 years ago
7

If i have a forest composed of 25 species of trees, each with a known abundances, how many events are there in the sample space

describing the event of randomly selecting a single tree of a specific species?
Mathematics
1 answer:
Vsevolod [243]3 years ago
3 0
There are 25 species of trees, each with a known abundances. The question is how many possible ways to randomly select one tree there are.
We should calculate the number of combinations. Combinations, because we select item/s from a collection. In this case, when we select only one item, the combination is also a permutation. From set of n objects we select r. In our case: n=25, r=1. 
The equation is: n!/r!(n-r)!= 25!/1!*24!=25*24!/24!=25
There are 25 different outcomes (events).
You might be interested in
Simplify the expression.<br><br> can anyone explain to me how to do this? please
WINSTONCH [101]

Answer:

The answer is the last one (32x^7y^15)

You can bring x to the second power (x^2) because (x) is basically x^1. This is a basic exponent rule. (x^m)^n = x^m times n.

Then you can apply this rule to (2xy^3)^5. First you bring two to the fifth power and get 32. Then you bring x^5 according to the rule. Then you bring y^15, also because of the rule.

Now you have:

x^2 times 32x^5y^15

Now you just multiply the like terms together (x^2 and x^5)

When you multiply two exponents with the same base, you add the exponents together: a^n times a^m = a^n+m.

So you end up with 32x^7y^15



5 0
2 years ago
Read 2 more answers
A population of ants triples every week. If the population starts at 7, how many ants will there be after 7 weeks?
Harrizon [31]

Answer:

147 ants

Step-by-step explanation:

7 times 3=21 21 times 7= 147

6 0
3 years ago
Read 2 more answers
For the function y = 3x^2 - 12x + 4, what is the mirror point for the y-intercept? Give your answer in (x,y) point form.
saveliy_v [14]

Answer:

Your in Pacyber aren't you? Mr. Breux class? Anyway the answer is (0,-4)

Step-by-step explanation:

The y intercept is (0,-4)

6 0
2 years ago
C. A rational number is a number that can be expressed as a fraction with both the
Dmitriy789 [7]

Answer:

Step-by-step explanation:

Rational expressions are bascially an expression where one polynomial is divided by another.  And a polynomial is a series of terms like ax^b added together, where the exponents, what I labeled as b, need to be positive integers.

6 0
2 years ago
What is 2.99 as a fraction
Serga [27]
2.99

2 is a whole number

0.99 = 99/100

your fraction is:

mixed number = 2   99/100
improper fraction =  299/100 (multiply whole number to denominator & then add numerator)

hope this helps
8 0
2 years ago
Read 2 more answers
Other questions:
  • -3/4(16m+4) in disbrutive property​
    5·2 answers
  • Please help me, I don't know this one.
    5·2 answers
  • An object's height varies directly with the length of its shadow. A person who is 6 feet tall casts a 12-foot shadow. How long i
    9·2 answers
  • Your parents love coffee . They purchased a bag of coffee online for 10.99. Since they purchased it online . They received 18% o
    12·1 answer
  • Million dollar question. No joke
    9·1 answer
  • What is the probability that Saturday is the day after Wednesday?
    9·2 answers
  • What is the difference of 11 and 3.5?​
    5·2 answers
  • Write the following statement
    6·1 answer
  • 5 *6.022*10000000000000000000000​
    10·1 answer
  • URGENT!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!