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
Which would the phrase "twice the difference of a number and 5" look like as a variable expression? A) 2(x-5)
Ira Lisetskai [31]
A) 2 (x-5)
because difference means subtraction and it is twice that

4 0
3 years ago
Read 2 more answers
A druggist needs 25 liters of a solution that is 16% iodine. She has one solution that is 12 % iodine and another that is 37 %.
GalinKa [24]

Answer:

21 liters of the 12% solution and 4 liters of the 37% solution

Step-by-step explanation:

Represent the number of liters of the first solution as x and the second as y. Now, the total liters of iodine is going to be 16% of 25 = 4 liters of iodine, and the total liters of each solution is going to be 25. Now, we can setup two equations:

0.12x+0.37y = 4

x + y = 25

Multiplying the bottom equation by 0.12, we have

0.12x + 0.12y = 3

Subtracting, we have

0.12x+0.37y=4

-

0.12x + 0.12y = 3

= 0.25y = 1

= y = 4

= x = 25 - 4 = 21

7 0
2 years ago
The junior and senior classes at Central High School were asked to choose a destination for a field trip. The results are shown
Ann [662]

Solution:

We are given below frequency table:

             Amusement-Park      Museum         Broadway-Show         Total

Juniors                57                      21                      42                          120

Seniors                64                     44                      58                          166

Total                    121                     65                      100                        286

We have to find the percentage of surveyed students who chose the amusement park.

From the table, we see there are total 121 students who chose amusement park out of total 286 students.

Therefore, the percentage of surveyed students who chose the amusement park is given below:

\frac{121}{286}\times 100=42.3\%

Hence, the option A. 42.30% correct.


3 0
2 years ago
Please help me thanks
Lynna [10]

Answer:

If we look at ΔBDH, we notice that m∠BHG has to be 108 - 36 - 39 = 105°. Because x and ∠BHG are a linear pair we know that x = 180 - ∠BHG = 180 - 105 = 75°.

7 0
2 years ago
Read 2 more answers
Six of 16 students in Mr. McConney's class are serving detentions, the rest are here for tutoring. What percent of students are
Ivan

Answer:

62.5%

Step-by-step explanation:

plz mark the brainliest

3 0
3 years ago
Read 2 more answers
Other questions:
  • Randall is 15 years younger than Wendy. 8 years ago, Wendy's age was 2 times Randall's age. How old is Randall now?
    11·1 answer
  • Rectangle B is shown below. Nadia drew a scaled version of Rectangle B using a scale factor of 1/5 and labeled it Rectangle C wh
    8·1 answer
  • <img src="https://tex.z-dn.net/?f=%20log_%7B3%7D%28%20%7Bx%7D%5E%7B2%7D%20%20-%20x%20-%202%29%20%3D%202%20log_%7B3%7D%28x%20%2B%
    13·1 answer
  • you begin with $25 in savings and $50 in checking, each week you deposit $5 into savings and $10 into checking. after how many w
    6·1 answer
  • Brian's gross earnings for the week of July 8, 2019, are $1227.38. His deductions comprise 23% of his total compensation.
    15·1 answer
  • Find the value of the variable that results in congruent triangles. Explain. SAS (Side, Angle, Side) or ASA (Angle, Side, Angle)
    8·1 answer
  • Subtract the following polynomials.
    11·1 answer
  • Help please would be appreciated ​
    8·1 answer
  • Rewrite in simplest terms: -3(s – 10) + 7(-2s – 1)
    11·2 answers
  • What does the formula |_|r^2 <br> find?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!