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
julia-pushkina [17]
3 years ago
9

The probability that you will get grounded if you have a bad grade is 85%. The probability that you will get grounded and have e

xtra chores is 50%. What is the probability that you will have extra chores given that you are already grounded?
Mathematics
1 answer:
alexandr402 [8]3 years ago
6 0
If you are grounded, there are two options - you are only grounded or you have extra chores too. Therefore, at that point, there is a 100% chance of you already being grounded - we need to figure what percentage of 100 the extra chores is. To find that, we can do 50/85= around 59% percent
You might be interested in
Which of the following equations best represents the regression line for the data given in the
True [87]

The regression equation for the data given is y= -8.57 -2.31x

Step-by-step explanation:

The first step is to form a table as shown below;

x           y          xy         x²         y²

1            4           4          1          16

2            1            2          4         1

3            5          15         9         25

4             10         40        16       100

5             16         80        25      256

6              19        114       36        361

7               15       105       49       225

28             60       360      140     984  ------sum

A linear regression equation is in the form of y=A+Bx

where ;

x=independent variable

y=dependent variable

n=sample size/number of data points

A and B are constants that describe the y-intercept and the slope of the line

Calculating the constants;

A=(∑y)(∑x²) - (∑x)(∑xy) / n(∑x²) - (∑x)²

A=(60)(140) - (28)(360)  / 7(140)-(28)²

A=8400 - 10080 /980-784

A= -1680/196

A= - 8.57

B= n(∑xy) - (∑x) (∑y) / n(∑x²) - (∑x)²

B= 7(360)-(28)(60) / 7(60) - (28)²

B=2520 - 1680 /420-784

B=840/-364

B= -2.31

y=A+Bx

y= -8.57 -2.31x

Learn More

Regression equation :brainly.com/question/12280902

Keywords : equations, regression line, data

#LearnwithBrainly

7 0
3 years ago
Hello, I need help with a math question, please tell me if I am right. *Refer to the photo*
Trava [24]

As I can tell the tables are right but it would be a function since none of the x's repeat

5 0
2 years ago
Each line represents a proportional relationship. Write an equation for each line. Show your work.
Semenov [28]

Answer:

The answer is in the picture. I hope it is helpful.

6 0
3 years ago
Read 2 more answers
Help with this question
puteri [66]

Answer:

its A!

Step-by-step explanation:

6 0
3 years ago
Image attached Please help asap
bearhunter [10]
First question: 2x = 50
Explanation:
“2 times as many” in this situation means that the pages justin read (50) is twice as Colin’s. Meaning that to find the number of pages Colin’s read, we will have to divide 50 by 2.
2x = 50 is an equivalent representation of that.

2nd question:
(Choose these correct statements):
• 9h represents how much money Sofia earns babysitting for h hours.
• Sofia babysat for 3 hours.
• If Sofia babysits for 5 hours, she will earn $45

Have a nice day (brainliest please)
6 0
3 years ago
Other questions:
  • Pls help i’ll give u a brainlest
    9·2 answers
  • If the number of bacteria in a colony doubles every 400 hours and there is currently a population of 500 bacteria, what will the
    11·1 answer
  • 15 meter per second slower than speed X
    12·2 answers
  • What is a volume of a solid 2ft by 6ft by 17ft
    6·1 answer
  • Rectangle ABCD is dilated to create rectangle A'B'C'D' . The width of rectangle ABCD is 8 feet. The width of rectangle A'B'C'D'
    5·1 answer
  • What is the sum of -7 and its additive inverse?
    8·2 answers
  • Which expression is equivalent to (x^1/2y^-1/4z)^-2?
    12·1 answer
  • En una radio, 1/8 del dia esta destinado a emitir publicidad. Del total de publucidad, 3/5 corresponden a comerciales de univerc
    6·1 answer
  • Math pls help???????
    11·2 answers
  • I need to know how to solve this completely not just the answers plz :)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!