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Elza [17]
4 years ago
15

A standard die is rolled 360 times in hopes of rolling a 5 or 6 to the probability of success is p=1/3 find the standard deviati

on of the binomial distribution
Mathematics
2 answers:
Katen [24]4 years ago
8 0

Answer:

The standard deviation is 8.94 to the nearest hundredth.

Step-by-step explanation:

The standard deviation of a binomial distribution is calculated using the formula;

\sigma =\sqrt{npq}, where

n=360 is the number of times the die is rolled.


p=\frac{1}{3} is the probability of a success and q=1-\frac{1}{3} =\frac{2}{3} is the probability of a failure, that is not rolling a 5 or 6.


We substitute all these values in to the formula, to obtain,


\sigma =\sqrt{360\times \frac{1}{3} \times \frac{2}{3}}


\Rightarrow \sigma =\sqrt{80}


\Rightarrow \sigma =4\sqrt{5}


\Rightarrow \sigma =8.94 to the nearest hundredth.





Murljashka [212]4 years ago
8 0

Answer: 1. B) 53.4

2. C) 128.7

3. A) usual because the result is between...

4. A) 0.9

5. A) 8.9

6. D) 92.8

7. C) 131.7

8. A) 372.6

9. D) 43.7

10. D) 240.8

Step-by-step explanation: 100% :)

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3 years ago
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Step-by-step explanation:

HOPE THIS HELPED!!!!

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