Solve the following problems applying the Binomial distribuction: What is the

Tabansi

Tabansi

Answered question

2021-09-15

Solve the following problems applying the Binomial distribuction:
What is the probability of obtaining at most twice the number 4, in a 10 throw of a 6-sided die?
In the case of the die. We want the probability of obtaining exactly 2 threes in 4 throws.

Answer & Explanation

Alara Mccarthy

Alara Mccarthy

Skilled2021-09-16Added 85 answers

Step 1- Writing given data
Given that
Binomial probability distribution.
We know that
By binomial probability distribution
P(X=x)=nCxxPxx(1P)(nx)
Probability of rolling any number in a die (P)=16
Probability of not rolling given number (1P)=56
Step 2 - Calculation
What is the probability of obtaining at most twice the number 4, in a 10 throw of a 6-sided die? =P(x2)
Here,
n=10; at most twice the number 4.; P=16
P(x2)=P(x=2)+P(x=1)+P(x=0)
P(x2)=10C2x(16)2x(56)(102)+10C1x(16)1x(56)(101)+10C0x(16)0x(56)(100)
P(x2)=45x(16)2x(56)(8)+10x(16)1x(56)(9)+1x1x(56)(10)
P(x2)=0.29071+0.32301+0.16150
P(x2)=0.77522
The probability of obtaining at most twice the number 4, in a 10 throw of a 6-sided die is 0.77522
In the case of the die. We want the probability of obtaining exactly 2 threes in 4 throws.
Here,
n=4;x=2;P=16
P(exactly 2 threes)=P(x=2)
P(x=2)=4C2x(16)2x(56)(42)
P(x=2)=6x(16)2x(56)(2)
P(x=2)=0.11574
The probability of obtaining exactly 2 threes in 4 throws is 0.11574

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