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
Yuri [45]
2 years ago
12

Bag A contains black balls and white balls

Mathematics
1 answer:
deff fn [24]2 years ago
5 0

Using the probability of complementary events, it is found that q = 0.25.

<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

When two events are complementary, the <u>sum of their probabilities is of 1</u>.

For this problem, black balls and white balls are complementary, hence:

p + q = 1.

We have that p = 3q, hence:

3q + q = 1

4q = 1.

q = 1/4

q = 0.25.

More can be learned about probabilities at brainly.com/question/14398287

#SPJ1

You might be interested in
You start at (10, 2). you move up 2 units and down 4 units. where do you end?
DochEvi [55]
You end up at (10,0)
4 0
3 years ago
Use the gcf to create an equivalent expression 18y + 24
Virty [35]

Answer:

The gcf is 6.

so

we can divide by 6 on both sides to create

6(3y + 6)

Step-by-step explanation:

3 0
2 years ago
Given the information below, write the conclusion in context. 1. H0 : The proportion of defective batteries = 0.02 2. HA : The p
Marizza181 [45]

Answer:

z = -1.23

And we can calculate the p value with the following probability taking in count the alternative hypothesis:

p_v = P(z

And for this case using a significance level of \alpha=0.05 ,0.1 we see that the p value is larger than the significance level so then we can conclude that we FAIL to reject the null hypothesis and we don't have enough  evidence to conclude that the true proportion is less than 0.02

Step-by-step explanation:

For this case we want to test the following system of hypothesis:

Null hypothesis: p =0.02

Alternative hypothesis: p < 0.02

The statistic for this case is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

And for this case we know that the statistic is given by:

z = -1.23

And we can calculate the p value with the following probability taking in count the alternative hypothesis:

p_v = P(z

And for this case using a significance level of \alpha=0.05 ,0.1 we see that the p value is larger than the significance level so then we can conclude that we FAIL to reject the null hypothesis and we don't have enough  evidence to conclude that the true proportion is less than 0.02

5 0
3 years ago
for the State Fair next month 132 people volunteer to plan the fairs activities the volunteers form 12 equal groups how many vol
MA_775_DIABLO [31]

Answer:

11

132/12

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
- Simplify the expression: -21 - (38)
Nutka1998 [239]

Step-by-step explanation:

-21 - (38)

-21-38

-(21+38)

-59

6 0
3 years ago
Read 2 more answers
Other questions:
  • HELP! Please and thanks
    14·1 answer
  • How many kilograms is a mass of a cat and show your work
    11·2 answers
  • 25 POINTS HELP NOW<br><br> Twenty is 10% of what number?<br><br> Enter your answer in the box
    7·2 answers
  • A ruby throated humming bird flaps its wings 159 times in three seconds. How many times does the ruby throated humming bird beat
    5·1 answer
  • Find a statement that is equivalent to the absolute value equation |9x−9|=7.
    15·1 answer
  • Which of the following is not affected by the outliers in the data shown
    5·1 answer
  • Given square WXYZ. If ZY = 20, find WV. Write your response in the form WV=_____.
    7·1 answer
  • Find the area of the rectangle shown. 0.3 in. 0.6 in.
    5·1 answer
  • Dived these numbers in scientific notation.<br><br> (9.6*10^-8)/(3*10^-7)
    14·1 answer
  • PLEASE HELP ILL MARK BRAINEST!!!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!