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
Alex
3 years ago
8

On any given day, Buffy is either cheerful (c), so-so (s), or gloomy (g). If she is cheerful today, then she will be c, s, or g

tomorrow with respective probabilities .7, .2, and .1. If she is so-so today, then she will be c, s, or g tomorrow with respective probabilities .4, .3, and .3. If she is gloomy today, then Buffy will be c, s, or g tomorrow with probabilities .2, .4, and .4. What proportion of time is Buffy cheerful?

Mathematics
1 answer:
zysi [14]3 years ago
7 0

Answer:

0.7

Step-by-step explanation:

The matrix of possibility is given by the table below

Therefore the proportion of time Buffy is cheerful is 0.7

You might be interested in
Assume the sales representative calls 6 customers, and each call has 4 possible results: reaches the customer in person, gets an
KonstantinChe [14]

Answer:

81

Step-by-step explanation:

8 0
3 years ago
What equivalent fractions for 2 3/5 and 1 1/3 using a common denominator
inysia [295]
2 9/15 and 1 5/15 are your answers
8 0
2 years ago
Read 2 more answers
If you know that 1% of a population has a certain disease. A test was made. This test is positive in 95% of the people with the
LenKa [72]

Answer:

ali probley has a 50% chance

Step-by-step explanation:

6 0
3 years ago
(2x-7)(x+2)+(3x+7)(x+2)
Ivahew [28]

Answer:

5

2

+

1

0

________________

4 0
3 years ago
Read 2 more answers
I need to turn this in in 2 hours please hurry
Nuetrik [128]

Answer:

  2) 162°, 72°, 108°

  3) 144°, 54°, 126°

Step-by-step explanation:

1) Multiply the equation by 2sin(θ) to get an equation that looks like ...

   sin(θ) = <some numerical expression>

Use your knowledge of the sines of special angles to find two angles that have this sine value. (The attached table along with the relations discussed below will get you there.)

____

2, 3) You need to review the meaning of "supplement".

It is true that ...

  sin(θ) = sin(θ+360°),

but it is also true that ...

  sin(θ) = sin(180°-θ) . . . . the supplement of the angle

This latter relation is the one applicable to this question.

__

Similarly, it is true that ...

  cos(θ) = -cos(θ+180°),

but it is also true that ...

  cos(θ) = -cos(180°-θ) . . . . the supplement of the angle

As above, it is this latter relation that applies to problems 2 and 3.

6 0
3 years ago
Other questions:
  • Help if you can thank you
    5·2 answers
  • Can someone help me with this question?
    14·2 answers
  • Evan was competing in a 3000-meter race.He had to drop out after only running 5/6 of the race.How many meters did he run.
    12·1 answer
  • Need help question 11
    11·1 answer
  • Can someone help me and show the work pls.
    7·2 answers
  • How many gallons each of 25 alcohol and 5 alcohol should be mixed to obtain 20 gal of 15 alcohol?
    6·1 answer
  • Pls answer also no explanation no brainliest.
    10·2 answers
  • 5x -4y = -23<br><br> -5x + 9y =8
    7·1 answer
  • Simplify the variable expression below as much as possible.<br> 3x + 2y + 5-3
    10·1 answer
  • If 3 oranges and 4 apples cost $14 and 5 oranges and 2 apple cost $21. find the value of 2 oranges and 3 apples.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!