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irinina [24]
2 years ago
14

given the probability distribution of an random variable X below,compute for the variance and standard deviation X 1 2 3 4 P(X)

1/5 1/10 2/5 3/10
Mathematics
1 answer:
lisabon 2012 [21]2 years ago
7 0
Answer is quantom physics cant equate to the sum of the x
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Which of the following sets of possible side lengths does not form a triangle
Alex Ar [27]

Answer:

<h2>b) 4,5,15</h2><h2 />

Step-by-step explanation:

In a triangle of sides‘s length a , b and c

in order to be able to form (construct) this triangle we must have :

c - a < b < c + a

in fact this work with cases a) ,c) and d)

but not b)

because  15 - 4 is not < to 5

in other words 15 - 4 > 5

3 0
3 years ago
W is greater than -5 and less than 0
Ronch [10]
Yessndndndd dndndndndndndndndndd
5 0
3 years ago
the brand name of a certain chain of coffee shops has a 53% recognition rate in the town of coffleton. An executive from the com
Degger [83]
This problem can be solve using the Binomial Distribution, it is a recurrence conveyance of the conceivable number of effective results in a given number of trials in each of which there is a similar likelihood of accomplishment.

Let be X: coffleton residents recognize the brand name 

n = 10 

p = 0.53

q = 0.47 

P(X = 4) = 

(10)
 
(4)*(0.53^4)*(0.47^6) = <span>0.00340</span>
7 0
3 years ago
To join the game club, you must pay $7 a month plus
ivanzaharov [21]

Answer: Total cost/month = 7 + 3x

Step-by-step explanation:

This is only the total cost per month that is why it is only 7 and 3x since the number of downloaded games is not given.

I'm not sure about my answer but I hope that it helps.

8 0
1 year ago
The cost of 2 plates of spaghetti &amp; 1 plate of salad is $27.50. The cost for 4 plates of spaghetti &amp; 3 salads is $59.50.
k0ka [10]

2a+1b=27.50

4a+2b=59.50

Multiply first equation by -4 and the second by 2 so you can drop off the a values then add the equations together.  Then solve for b.  You should get b=6.

Then plug b into one of the original equations and solve for a and you should get 10.75

So a plate of spaghetti is $10.75 and a salad is $6.

<em><u>Please mark brainliest!</u></em>

8 0
2 years ago
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