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
Rewrite the following equation in standard form.<br> y = -7x - 1
Lady bird [3.3K]

Standard form is written Ax + By = C where A, B, and C are all integers.

In other words, no fractions.

Also, the A or the coefficient of the x term must be positive.

The only thing we need to do is add 7x to both sides to get 7x + y = -1.

So 7x + y = -1 is our answer.

5 0
3 years ago
Read 2 more answers
What's 16/100 in simplest form
son4ous [18]
16/100 goes to 4/25.
7 0
3 years ago
4. Which of the following is not true of saliva?
erik [133]

Answer: c

Step-by-step explanation:

ok so it doesn't contain  moisten in food

7 0
2 years ago
What calculation can I use to find 961 after a 24% decrease?
dsp73

Answer:

d

Step-by-step explanation:

i know it's rhe right answer

5 0
2 years ago
Read 2 more answers
Complete each question by choosing or typing in the best answer.​
Fantom [35]
Where are the questions
7 0
3 years ago
Other questions:
  • sam has five favorite football teams, and every week, he puts their flags on his flagpole in random order a. in a given week, ho
    14·1 answer
  • 10 POINTS!!! I WILL GIVE BRAINLIEST!
    13·2 answers
  • What is the measure of the vertex angle of an isosceles triangle if one of the base angles measures 58°? a. 116° b. 64° c. 61° d
    9·1 answer
  • Help please, IT'S SUPER DUPER EASY
    7·2 answers
  • What is the solution set of x^2+y^2=26 and x-y=6
    11·2 answers
  • Please help me answer this question.
    15·1 answer
  • 1/3 + a = 5/4<br> a = __??
    5·1 answer
  • Heres another please help
    14·1 answer
  • PLZZZZ HELP MEEE
    13·1 answer
  • Evaluate the function.<br> f(x) = -x² + 6<br> Find f(-3)
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!