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Ganezh [65]
2 years ago
15

Twenty college students were asked for their number of close friends; persons who showed sympathy when needed and helped in hard

times. The average number reported was just over 2. Identify a statistical population and the sample. The sample consists of the answers of all college students when asked their number of close friends. The statistical population is the answers given by the twenty college students. The statistical population consists of the answers of all college students when asked their number of close friends. The sample is the answers given by the twenty college students. The statistical population consists of all college students. The sample is the answers given by the twenty college students.
Mathematics
1 answer:
Nonamiya [84]2 years ago
8 0

Answer:

The statistical population consists of all college students. The sample is the answers given by the twenty college students.

Step-by-step explanation:

A population is an entire group from which a sample is pulled.  In this problem, the population is all students in the college.

The sample is the portion of the population pulled.  In this problem, this is the twenty college students.

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Identify the name of the polygon given the number of sides.
Vesna [10]

Answer:

Step-by-step explanation:

3 Triangle

4 Quadrilateral

5 Pentagon

6 Hexagon

7 Heptagon

8 Octagon

9 Nonagon

10 Decagon

5 0
2 years ago
What is -0.009 to the second power
kondaur [170]
I believe it's -0.000081
5 0
3 years ago
What's is the converse of the statement?If x is odd, then 2x is even.
dsp73
If you have two statements p and q and p\Rightarrow q is true, then  \neg q\Rightarrow \neg p is also true.

In your case, statements are p - "x is odd" and q -  "2x is even".

 Then \neg p - "x is not odd" and \neg q - "2x is not even."


Hence \neg q\Rightarrow \neg p sounds as: "If 2x is not even, then x is not odd".
Answer: correct choice is D.







7 0
3 years ago
Which pair of slopes could represent perpendicular lines?
Dmitry_Shevchenko [17]

Answer:

1/2, 2/4

Step-by-step explanation:

5 0
3 years ago
A password is 4 characters long and must consist of 3 letters and 1 of 10 special characters. If letters can be repeated and the
Ne4ueva [31]

The number of possibilities for constructing the 4 characters long password with specified conditions is given by: Option C: 703,040

<h3>What is the rule of product in combinatorics?</h3>

If a work A can be done in p ways, and another work B can be done in q ways, then both A and B can be done in p \times q ways.

Remember that this count doesn't differentiate between order of doing A first or B first then doing other work after the first work.

Thus, doing A then B is considered same as doing B then A

We're specified that:

  • The password needs to be 4 characters long
  • It must have 3 letters and 1 of 10 special characters.
  • Repetition is allowed.

So, each of 3 characters get 26 ways of being 1 letter. (assuming no difference is there between upper case letter and lower case letter).

And that 1 remaining character get 10 ways of being a special character.

So, by product rule, this choice (without ordering) can be done in:

26 \times 26 \times 26 \times 10 = 175760 ways.

Now, the password may look like one of those:

  1. L, L, L, S
  2. L, L, S, L
  3. L, S, L, L
  4. S, L, L, L

where S shows presence of special character and L shows presence of letter.

Those 175760 ways are available for each of those four ways.

Thus, resultant number of ways this can be done is:

175760 \times 4 = 703040

Thus, the number of possibilities for constructing the 4 characters long password with specified conditions is given by: Option C: 703,040

Learn more about rule of product here:

brainly.com/question/2763785

5 0
1 year ago
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