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BigorU [14]
3 years ago
13

A stock has a 25% probability of increasing by $10 and a 75% probability of decreaing by $5. What is the stocks expected increas

e or decrease?
Please help me!!!!

Mathematics
1 answer:
statuscvo [17]3 years ago
6 0

Step-by-step explanation:

The expected value is the sum of each probability times the value.

E = 0.25 (10) + 0.75 (-5)

E = -1.25

The stock is expected to decrease by $1.25.

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Simplify the expression -2(2x+y)-7x+2y
wolverine [178]

Answer:

Step-by-step explanation:

6 0
3 years ago
Assume a warehouse operates 24 hours a day. Truck arrivals follow Poisson distribution with a mean rate of 36 per day and servic
kirill [66]

The expected waiting time in system for typical truck is 2 hours.

Step-by-step explanation:

Data Given are as follows.

Truck arrival rate is given by,   α  = 36 / day

Truck operation departure rate is given,   β= 48 / day

A constructed queuing model is such that so that queue lengths and waiting time can be predicted.

In queuing theory, we have to achieve economic balance between number of customers arriving into system and that of leaving the system whether referring to people or things, in correlating such variables as how customers arrive, how service meets their requirements, average service time and extent of variations, and idle time.

This problem is solved by using concept of Single Channel Arrival with exponential service infinite populate model.

Waiting time in system is given by,

w_{s} = \frac{1}{\alpha - \beta  }

        where w_s is waiting time in system

                   \alpha is arrival rate described Poission distribution

                   \beta is service rate described by Exponential distribution

w_{s} = \frac{1}{\alpha - \beta  }

w_{s} = \frac{1}{48 - 36 }

w_{s} = \frac{1}{12 } day

w_{s} = \frac{1}{12 }  \times 24  hour        ...it is due to 1 day = 24 hours

w_{s} = 2 hours

Therefore, time required for waiting in system is 2 hours.

           

                   

5 0
4 years ago
Diane made $286 for 13 hours of work,
lyudmila [28]

Answer:

8 hours

Step-by-step explanation:

286 divided by 13 is 22

so she's making 22 dollars an hour

22 times x = 176

x = 8

she would need to work 8 hours

4 0
3 years ago
What are the next three terms in the sequence3,6,9,12,...?
Vinil7 [7]

Answer:

15, 18, 21

Step-by-step explanation:

3, 6, 9, 12, 15, 18, 21...

3 x 5 = 15

3 x 6 = 18

3 x 7 = 21

Hope this helps! :)

8 0
3 years ago
1. In 2005, what type of on-the-job accident was associated with the highest number of
Tems11 [23]

Answer:

It's the chemical because they have to work with dangerous stuff.

3 0
3 years ago
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