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
myrzilka [38]
3 years ago
6

An urn contains 17 white balls and 18 red balls. A sample of four balls is selected at random from the urn. What is the probabil

ity that the sample contains two white balls and two red ones?
a. 0.0286
b. 0.2286
c. 0.3974
d. 0.0944
e. 0.0442
f. None of the above.
Mathematics
1 answer:
erik [133]3 years ago
6 0

Answer:

c. 0.3974

Step-by-step explanation:

Given;

number of white balls, W = 17

number of red balls, R = 18

Total number of balls, T = 35

The number of ways the event will occur is given by

= P(2 whites) and P(2 reds)

= P(2whites) x P(2 reds)

= 17C2 x 18C2

= 136 x 153

= 20,808

The total number of possible outcome

= 35C4

= 52,360

The probability = 20,808 / 52,360

                          = 0.3974

The correct option is "C"

You might be interested in
Solve each system of equations using matrices.<br> -2x = -6y + 8<br> 2y = x + 1
Elden [556K]

Answer:    1.) x - 2y = 4 , add 2y to both sides. ---> answer is, X = 2y + 4

2.) 2x - 6y = 8, Add 6y to both sides, then divide both sides by 2. --> answer is, X = 3y + 4

6 0
2 years ago
Question is in picture
stiv31 [10]

Answer:

27.5

Step-by-step explanation:

pythagorean theorem. a^2+b^2=c^2.

so 12^2+b^2=30^2

meaning 144+b^2=900

900-144=756

square root 756

b=27.5

5 0
3 years ago
Chris wanted to know how likely he is to win at his favorite carnival game. He conducted 50 tests and won 15 times. What is the
aleksklad [387]

Answer:

b.) 0.30

Step-by-step explanation:

15/50 = 0.3

3 0
2 years ago
What is 8.362 rounded to the nearest hundredth?
Aleksandr [31]

Answer:8.300

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
10. Which of the following could be the
Nesterboy [21]

Answer:

12 16 20. law of proportions

7 0
2 years ago
Other questions:
  • A manufacturing plant, which produces CDs, has monthly overhead costs of $6000. Each disk costs 18 cents to produce and sells fo
    5·1 answer
  • A paper plate has a diameter of 9 inches.what is the circumference of the plate
    7·2 answers
  • Andrew drew a square with each side measuring 3 inches. Lindsay drew a triangle with each side measuring 4 inches. Which shape h
    10·2 answers
  • Compute the scale factor of the new scale drawing (SD2) to the first scale drawing (SD1) using the information from the given sc
    5·1 answer
  • There u go you're all set and there's more to come thank you so much
    13·1 answer
  • Which ordered pair could replace the missing value and create a
    8·2 answers
  • Easy question Give a formula used for finding the area of a square. Then use the formula to find the area of a square with a sid
    12·1 answer
  • ✨a Pls help I will park you as brainlist promise ✨✨
    9·2 answers
  • Solve the system of equations Y=-2x+5 and y=x^2+3x+9
    9·1 answer
  • What is 9.85km to 5000m as a ratio in it's lowest terms
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!