answer.
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
nataly862011 [7]
2 years ago
12

In one town 44% of all voters are Democrats if two voters are randomly selected for a survey find the probability that they are

both Democrats. round to the nearest thousandth if necessary.
0.189
0.880
0.440
0.194
Mathematics
1 answer:
kenny6666 [7]2 years ago
6 0

Answer:

0.194


Step-by-step explanation:

Probability that BOTH are democrats means probability of <u>"one being democrat"</u> AND <u>"another also being democrat"</u>.

The AND means we need to MULTIPLY the individual probability of a person being democrat.

Probability that a voter is democrat is 44% (0.44) -- stated in the problem


Now, Probability BOTH being Democrats is simply MULTIPLYING 0.44 with 0.44

0.44*0.44=0.1936

Rounded to nearest thousandth, 0.194

Last answer choice is correct.

You might be interested in
1:Suppose we have a bag with $10$ slips of paper in it. Eight slips have a $3$ on them and the other two have a $9$ on them. Wha
3241004551 [841]

Answer:

Step-by-step explanation:

1 ) No of total slips after addition = 11

8 slip with 3 on it

3 slips with 9  on it

expectation value = probability of 3 x 3 + probability of 9 x 9

=  (8 / 11)  x 3 + (3 / 11)  x 9

24 / 11 + 27 / 11 = 4.636

2 )

No of total slips after addition = 12

8 slip with 3 on it

4 slips with 9  on it

expectation value = probability of 3 x 3 + probability of 9 x 9

=  (8 / 12)  x 3 + (4 / 12)  x 9

2 + 3 = 5

3 )

Let n be the required number

No of total slips after addition = 10+n

8 slip with 3 on it

2 + n  slips with 9  on it

expectation value = probability of 3 x 3 + probability of 9 x 9

=  (8 / 10+n )  x 3 + (2+n  / 10+n )  x 9 = 6

24 + 18 + 9n / 10 + n  = 6

42 + 9n = 60 + 6n

3 n = 18

n = 6

4 )

Let n be the required number

No of total slips after addition = 10+n

8 slip with 3 on it

2 + n  slips with 9  on it

expectation value = probability of 3 x 3 + probability of 9 x 9

=  (8 / 10+n )  x 3 + (2+n  / 10+n )  x 9 = 8

24 + 18 + 9n / 10 + n  = 8

42 + 9n = 80 + 8n

n =

n = 38

Minimum of 38 has to be added .

6 0
2 years ago
to practice for an Ironman competition John swim 0.86 kilometers each day for three weeks how many meters did he swim in those 3
vodomira [7]
Well, think about it 
3 weeks = 21 days 
so multiply, 0.86 times 21 days
and you get 18.06 meters.
4 0
2 years ago
Read 2 more answers
There are nine students in the chess club the club moderator select three of them to go to a chess tournament and how many ways
umka2103 [35]

Answer:

apex: 84

Step-by-step explanation:


3 0
2 years ago
Read 2 more answers
If hair grows at a rate of approximately 0.44 mm per day, how many
ale4655 [162]

Answer:

91

Step-by-step explanation:

40/.44

8 0
2 years ago
Read 2 more answers
The following table shows the probability distribution for a discrete random variable. X 12 15 17 20 22 24 25 30 P(X) 0.07 0.21
Volgvan

The mean of this discrete random variable can be calculated by finding for the summation of the weighted average:

Mean = Summation (Xi * P(Xi))

Therefore,

Mean = 12 (0.07) + 15 (0.21) + 17 (0.17) + 20 (0.25) + 22 (0.05) + 24 (0.04) + 25 (0.13) + 30 (0.08)

Mean = 19.59

<span>Therefore the answer is letter B. 19.59</span>

7 0
2 years ago
Read 2 more answers
Other questions:
  • a new car has a sticker price of $22,450 while the invoive price paid was$19,450 what is the dealer mark up
    12·2 answers
  • Beck finished 30% of his homework in 12 minutes. How many minutes will it take him to complete all of his homework?
    5·2 answers
  • A student in an intro stats course collects data at her university. she wants to model the relationship between student jobs and
    15·2 answers
  • Melissa has three different positive integers. She adds their reciprocals together and gets a sum of $1$. What is the product of
    15·2 answers
  • A parallelogram whose vertices have coordinates R(1, -1), S(6, 1), T(8, 5), and U(3, 3) has a shorter diagonal of ___ . 5 √(13)
    5·1 answer
  • Choose the table that represents g(x) = −2⋅f(x) when f(x) = x + 4.
    8·2 answers
  • Emily participates in a trivia quiz show. In each round, 20 points are awarded for a correct answer and 10 points are deducted f
    8·1 answer
  • What is the value of f(x) = –x2 + 3 when x = 1?
    14·1 answer
  • A DVD player was marked down by 30 percent from its original price of $75. Including a 7 percent sales tax, what is the final co
    11·1 answer
  • Al simplificar esta expresion logaritmica, cual es la forma mas simple? ​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!