mee ganan tika hadala dennko sinhalen podi wisthre kuth dunnoth hodaai

[hecker_thama]

step by step danna

 

[dilann]

4.1)

p = 1 - ( 0.05 + 0.1+0.15+0.3+0.02+0.05+0.1 )
= 1-0.77 = 0. 23

P(X>5) = 0.05 + 0.23 +0.1 = 0.38

4.2)

3/10 x 3/10 = 9/100

4.3) රුක් සටහන් ඇදල ගන්න.

 

[hecker_thama]

4.1)

p = 1 - ( 0.05 + 0.1+0.15+0.3+0.02+0.05+0.1 )
= 1-0.77 = 0. 23

P(X>5) = 0.05 + 0.23 +0.1 = 0.38

4.2)

3/10 x 3/10 = 9/100

4.3) රුක් සටහන් ඇදල ගන්න.

mekath hadanne khmd daannako

 

[olutanji]

Probility and statics kare na bung

 

[dilann]

View attachment 193662

mekath hadanne khmd daannako

P(1) = 1 / 60
P(2) = 4/60
P(3) = 7/60
P(4) = 10/60

P(5) = 1 - ( 1+4+7+10) / 60
= 38 / 60

b) 1 - ( 1+4) / 60
= 1- 1/12
= 11/12


මෙහෙම නේ ?

 

[Geshi95]

ගනන් බෑ.. බම්ප්

 

[Anunaki87]

variable can have a 5 different outcome first 4 outcomes x=1 to x =4 can be obtain by following formula P(x)= (3x-2)/60.what if x=1 to 5?


If you have 5 possible outcomes for a variable, and you know the probability of the first 4 outcomes using the formula P(x) = (3x-2)/60, then you can find the probability of the fifth outcome by using the fact that the probabilities of all possible outcomes must sum to 1. This means that the probability of the fifth outcome, P(5), can be found using the following formula:
P(5) = 1 - P(1) - P(2) - P(3) - P(4)
Substituting the given formula for P(x) for each of the first 4 outcomes, you get:
P(5) = 1 - [(31-2)/60] - [(32-2)/60] - [(33-2)/60] - [(34-2)/60]
Simplifying this expression gives:
P(5) = 1 - (1/20) - (2/20) - (5/20) - (8/20)
Which simplifies to:
P(5) = 1 - (16/20)
So the probability of the fifth outcome is:
P(5) = (4/20) = 0.2 = 20%
This means that there is a 20% probability of the variable having the fifth outcome.


what if x = 1?


If x is equal to 1, then the probability of this outcome is given by the formula P(x) = (3x-2)/60. Substituting 1 for x in this formula gives:
P(1) = (3*1 - 2)/60
Which simplifies to:
P(1) = (1/20) = 0.05 = 5%
So the probability of the variable having the first outcome is 5%.


what is the possibility x is more than 2?


To find the probability that x is more than 2, you need to find the probability of all outcomes where x is greater than 2 and add them up. You can use the formula P(x) = (3x-2)/60 to find the probability of each of these outcomes.
For example, if x is equal to 3, then the probability of this outcome is given by the formula P(x) = (3x-2)/60. Substituting 3 for x in this formula gives:
P(3) = (3*3 - 2)/60
Which simplifies to:
P(3) = (5/20) = 0.25 = 25%
If x is equal to 4, then the probability of this outcome is given by the formula P(x) = (3x-2)/60. Substituting 4 for x in this formula gives:
P(4) = (3*4 - 2)/60
Which simplifies to:
P(4) = (8/20) = 0.4 = 40%
If x is equal to 5, then the probability of this outcome is given by the formula P(x) = (3x-2)/60. Substituting 5 for x in this formula gives:
P(5) = (3*5 - 2)/60
Which simplifies to:
P(5) = (14/20) = 0.7 = 70%
So the probability that x is more than 2 is the sum of the probabilities of all outcomes where x is greater than 2, which is 25% + 40% + 70% = 135%. Note that the probabilities of all possible outcomes must sum to 1, so the probability of all outcomes where x is not more than 2 must be 1 - 135% = -35%. This means that the probability of x being more than 2 is not a valid probability. It is not possible for the probability of an event to be less than 0 or greater than 1.


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