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
Alchen [17]
3 years ago
10

(a) Count the number of ways to select a sample of 3 people to serve on a board of directors from a population of 6 people______

__. answer:
(b) If a simple random sampling procedure is to be employed, the chances that any particular sample will be the one selected are__________.
Mathematics
1 answer:
ValentinkaMS [17]3 years ago
8 0

Answer:

(a) 20 ways

(b) 0.05 or 5%

Step-by-step explanation:

(a) Assuming that the order in which people are chosen does not matter, the number of ways to select 3 people out of possible 6 is given by the following combination.

n=\frac{6!}{(6-3)!3!}=\frac{6*5*4}{3*2*1}=20\ ways

(b) In a random sampling procedure, every outcome is just as likely to occur. Therefore, the chances that any particular sample will be the one selected are:

C = \frac{1}{20}=0.05 = 5\%

You might be interested in
6. (5 points) What is 3loga + logb − logc written as a single logarithm?
Jobisdone [24]

Answer: log(\frac{a^3b}{c})

Step-by-step explanation:

You need to use the following Properties of Logarithms:

1)m*log(a)=log(a)^m\\\\2)log(a)+log(b)=log(ab)\\\\3)log(a)-log(b)=log(\frac{a}{b})

Given the following expression:

3log(a) + log(b) - log(c)

You can follow these steps in order to write it as a single logarightm:

- Apply the first property shown above:

=log(a)^3 + log(b) - log(c)

- Apply the second property:

=log(a^3b)- log(c)

- Finally, apply the third property:

=log(\frac{a^3b}{c})

4 0
3 years ago
If the original quantity is 8 and the new quantity is ​,2 what is the percent​ decrease?
azamat

Answer: 75%

Step-by-step explanation:

75% of 8 is 6.

8 was decreased by 6 to get 2.

8 was decreased by 75% of its initial value to get 2.

Hope this helped!

3 0
3 years ago
Read 2 more answers
Train A leaves Westtown and travels at 50 mph toward Smithville, 330 miles away. At the same time, Train B leaves Smithville and
lianna [129]
The answer to this question is that the trains will meet after 3 hours. We can work this out by considering that is the closing speed of the two trains is (50+60=)110 miles per hour, then this must mean that the combined distance that the trains need to travel before they meet is 330 miles. If the time that is taken to travel 330 miles at 110 miles per hour, then you simply need to divide 330/110 to find your answer - 3 hours.
7 0
3 years ago
Read 2 more answers
Question 5 (1 point)
aleksley [76]

Answer:

A = x^2 + 5x - 14

Step-by-step explanation:

A = L × W

A = (x+7) × (x-2)

A = x^2 + 7x - 2x - 14

5 0
3 years ago
I've literally asked this question 5 times lol. Can someone please help me?
Tju [1.3M]
I think i know the answer to that question. just wait for a sec.
6 0
2 years ago
Read 2 more answers
Other questions:
  • What is the value of x in the equation 8x – 2y = 48, when y = 4?
    12·1 answer
  • Tennis balls with a diameter of 2.5 in. are packaged 3 to a can. The can is a cylinder. Find the volume of the space in the can
    9·2 answers
  • Please help me!!! Will mark Brainliest!!!
    6·1 answer
  • A ball is thrown in the air that is 48 feet above the ground with an initial vertical velocity of 32 feet per second. The height
    7·1 answer
  • Beginning at 8:30 A.M., tours of the National Capitol leave every 15 minutes. Tours for the White House leave every 20 minutes.
    7·1 answer
  • A map of California has a scale factor of 1 inch = 16 miles. The distance on the map from Riverside to Chula Vista is 3.5 inches
    5·1 answer
  • Solve for x. 5x/7 - 5 = 50
    14·2 answers
  • PLEASE HELP LAST ONE
    11·2 answers
  • SOMEONE PLS HELP I DONT WANT TO FAIL THIS TEST
    13·1 answer
  • To watch the video
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!