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
ludmilkaskok [199]
3 years ago
9

The probability that mary will win a game is 0.04, so the probability that she will not win is 0.96. if mary wins, she will be g

iven $200; if she loses, she must pay $14. if x = amount of money mary wins (or loses), what is the expected value of x? (round your answer to the nearest cent.)
Mathematics
1 answer:
frosja888 [35]3 years ago
8 0
Let
EV----------> <span>expected value
</span>
we know that

EV = (Probability of Winning)*(Value of Winning) + (Probability of Losing)*(Value of Losing)
so
EV=0.04*(200)+0.96*(-14)-----> EV=8+(-13.44)-----> EV=-$5.44
So
she expects to lose $5.44 every time she plays (this is on average)

the answer is
-$5.44
<span>

</span>
You might be interested in
Find a 75% confidence interval for the population average weight μ of all adult mountain lions in the specified region. (Round y
kupik [55]

Answer:

75% confidence interval is 91.8±16.66. That is between 75.1 and 108.5 pounds.

Step-by-step explanation:

The question is missing. It is as follows:

Adult wild mountain lions (18 months or older) captured and released for the first time in the San Andres Mountains had the following weights (pounds): 69  104  125  129  60  64

Assume that the population of x values has an approximately normal distribution.

Find a 75% confidence interval for the population average weight μ of all adult mountain lions in the specified region. (Round your answers to one decimal place.)

75% Confidence Interval can be calculated using M±ME where

  • M is the sample mean weight of the wild mountain lions (\frac{69 +104 +125 +129+60 +64}{6} =91.8)
  • ME is the margin of error of the mean

And margin of error (ME) of the mean can be calculated using the formula

ME=\frac{t*s}{\sqrt{N} } where

  • t is the corresponding statistic in the 75% confidence level and 5 degrees of freedom (1.30)
  • s is the standard deviation of the sample(31.4)
  • N is the sample size (6)

Thus, ME=\frac{1.30*31.4}{\sqrt{6} } ≈16.66

Then 75% confidence interval is 91.8±16.66. That is between 75.1 and 108.5

3 0
3 years ago
Please answer this!! It is due soon!!
ollegr [7]

Answer:

Step-by-step explanation:

Statements                              Reasons

AB // DC                                    Given

AD // BC                                    Given

AC ≅ AC                                   Reflexive property

∠BAC ≅ ∠DCA                         Alternate interior angles

∠ACB ≅ ∠DAC                         Alternate interior angles

ΔCAB  ≅ ΔDAC                        A S A

AD ≅ BC                                   CPCT

8 0
3 years ago
A hot liquid is placed in a refrigerator to quickly cool down. The temperature of the liquid can be modeled with the exponential
True [87]

Answer:

This is 3

Step-by-step explanation:

4 0
3 years ago
The Prefix milli and micro respectively mean?
Artyom0805 [142]

Answer:b and c

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How do you solve this and what is the answer?
kiruha [24]
Bring the 3 to the other side, which makes 11-3 = 8
divide the whole equation by 2, which makes it Root (3x/5) = 8/2
square the whole equation which gives
, 3x/5 = 16
Multiply the equation by 5 which makes it, 3x = 80
finally divide the equation to find x,    x= 80/3
7 0
2 years ago
Other questions:
  • Solve for x: −3|x − 3| = −6
    6·2 answers
  • Write the fraction as a difference 3x - 7/12
    6·1 answer
  • -HELP ANSWER-
    15·1 answer
  • Can someone explain to me how to solve this please
    12·1 answer
  • What is the value of x?<br> 4 3<br> 11<br> 36<br> 16<br> 0 17/<br> 7<br> 16
    9·1 answer
  • Solve this inequality: -3 - 6(4x + 6) &gt; -111
    10·1 answer
  • I need help asap. Please answer
    15·2 answers
  • Area of this composite figure
    5·1 answer
  • bob puts in $50 per week and started with $100. bill started with $800 and takes out $60 per week. after how many weeks will the
    10·1 answer
  • A culture of bacteria has an initial population of 420 bacteria and doubles every 5 hours. Using the formula P_t = P_0\cdot 2^{\
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!