All categories

3 years ago

In rolling a die four times, what is the odds that at least one 5 would appear?

Computers and Technology

1 answer:

Ronch [10]3 years ago

4 0

Answer:

The probability that at least one 5 will appear in 4 rolls of die equals $\frac{671}{1296}$

Explanation:

The given question can be solved by Bernoulli's trails which states that

If probablity of success of an event is 'p' then the probability that the event occurs at least once in 'n' successive trails equals

$P(E)=1-(1-p)^{n}$

Since in our case the probability of getting 5 on roll of a die equals 1/6 thus we have p = 1/6

Applying the values in the given equation the probability of success in 4 rolls of die is thus given by

$P(E)=1-(1-1/6)^{4}=\frac{671}{1296}$

You might be interested in

How should I do it Please code for Java

andrew-mc [135]

Answer:

class Main {

public static void printPattern( int count, int... arr) {

for (int i : arr) {

for(int j=0; j<count; j++)

System.out.printf("%d ", i);

System.out.println();

}

System.out.println("------------------");

}

public static void main(String args[]) {

printPattern(4, 1,2,4);

printPattern(4, 2,3,4);

printPattern(5, 5,4,3);

}

Explanation:

Above is a compact implementation.

3 0

3 years ago

A computer is not connecting to certain network devices properly. the ip address information is as follows: ip address: 192.168.

larisa [96]

192.168 suggests class C networks which have a 24 bit netmask (255.255.255.0) but you haven't provided enough info, like the netmask of a working machine, to be definite.

3 0

3 years ago

Are engineers who help to develop products and projects by creating technical drawings

Alinara [238K]

Answer:

This is true but an Engineer is much more than that. They are the professionals of engineering, who do the invention, analyze, design and test complex systems, machines, structures, machines for fulfilling the functional objectives gadgets as well as the requirements while taking into consideration the limitations that come up due to practicality, safety, regulations, and cost.

Explanation:

Please check the answer section.

8 0

3 years ago

I am trying to figure out why I keep having the errors on the right side.

Y_Kistochka [10]

Shut down your computer and try again.

6 0

3 years ago

Write a program that asks the user to input an integer named numDoubles. Create a dynamic array that can store numDoubles double

Hitman42 [59]

Answer:

Answered in C++

#include <iostream>

using namespace std;

int main() {

int size;

cout<<"Length of array: ";

cin >> size;

double *numDoubles = new double[size];

double sum =0;

cout<<"Array Elements: ";

for(int i=0;i<size;i++){

cin>>numDoubles[i];

sum += numDoubles[i];

}

delete [] numDoubles;

cout<<"Average: "<<sum/size;

return 0;

}

Explanation:

This line declares the size (or length) of the array

int size;

This line prompts the user for the array length

cout<<"Length of array: ";

This gets the input from the user

cin >> size;

This dynamically declares the array as of double datatype

double *numDoubles = new double[size];

This declares and initializes sum to 0

double sum =0;

This prompts the user for elements of the array

cout<<"Array Elements: ";

The following iteration gets input from the user and also calculates the sum of the array elements

for(int i=0;i<size;i++){

cin>>numDoubles[i];

sum += numDoubles[i];

}

This deletes the array

delete [] myarray;

This calculates and prints the average of the array

cout<<"Average: "<<sum/size;

6 0

3 years ago