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Lera25 [3.4K]
2 years ago
5

Find the name of the professor with the maximum percentage of students that failed his course.

Computers and Technology
1 answer:
aleksandrvk [35]2 years ago
3 0

The minimum score needed to make an A is 89.

<h3>What is the z-score?</h3>

A Z Score, also known as the Standard Score, is a calculation used to determine how many standard deviations a raw score is below or above the population mean. Simply said, the Z Score informs you of a value's relationship to the mean and the distance a data point is from the mean.

Since the grades of his students were normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = grades of his students.

µ = mean grade

σ = standard deviation

From the information given,

µ = 74

σ = 10

The professor has informed us that 6.3 percent of his students received A's. The p-value for the minimum score is 1 - 0.063 = 0.937. The z value of 0.937 is 1.53.

1.53 = (x - 74)/10

1.53 × 10 = x - 74

15.3 = x - 74

x = 15.3 + 74

x = 89.3

Therefore, the minimum score needed to make an A is 89.

The complete question is given below:-

A professor at a local community college noted that the grades of his students were normally distributed with a mean of 74 and a standard deviation of 10. The professor has informed us that 6.3 percent of his students received A's while only 2.5 percent of his students failed the course and received F's. What is the minimum score needed to make an A?

To know more about the z- score, follow

brainly.com/question/25638875

#SPJ4

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Explanation:

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This is an example of what type of formula?
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2 years ago
Understanding Sequential Statements Summary
Kisachek [45]

Answer:

// Payroll.java

public class Payroll

{

int numOfDependents;

double salary;

double salaryToHome;

double Federal_Tax,TAX_RATE,Depen_tax;

 

Payroll(double salry,int nod)

{

numOfDependents=nod;

salary=salry;

Federal_Tax=6.5;

TAX_RATE=28.0;

Depen_tax=2.5;

}

 

double getTAX_RATE()

{

return TAX_RATE*salary/100;

}

double Federal_Tax()

{

return Federal_Tax*salary/100;

}

double getDepenAmount()

{

return numOfDependents*(Depen_tax*salary/100);

}

double getTakeHomeSalary()

{

return salary+getDepenAmount()-(getTAX_RATE()+Federal_Tax());

}

void printOutput()

{

System.out.print("\nState Tax: $"+getTAX_RATE());

System.out.print("\nFederal Tax: $"+Federal_Tax());

System.out.print("\nDependents: $"+getDepenAmount());

System.out.print("\nSalary: $"+salary);

System.out.println("\nTake Home Pay: $"+getTakeHomeSalary());

 

}

public static void main(String args[])

{

Payroll obj=new Payroll(1250,2);

obj.printOutput();

}

}

// ModifiedPayroll.java

import java.util.Scanner;

public class ModifiedPayroll

{

 

int numOfDependents;

double salary;

double salaryToHome;

double Federal_Tax,TAX_RATE,Depen_tax;

 

ModifiedPayroll(double salry,int nod)

{

//initialise variables

numOfDependents=nod;

salary=salry;

Federal_Tax=6.5;

TAX_RATE=28.0;

Depen_tax=2.5;

}

 

double getTAX_RATE()

{

return TAX_RATE*salary/100;

}

double Federal_Tax()

{

return Federal_Tax*salary/100;

}

double getDepenAmount()

{

return numOfDependents*(Depen_tax*salary/100);

}

double getTakeHomeSalary()

{

return salary+getDepenAmount()-(getTAX_RATE()+Federal_Tax());

}

void printOutput()

{

System.out.print("\nState Tax: $"+getTAX_RATE());

System.out.print("\nFederal Tax: $"+Federal_Tax());

System.out.print("\nDependents: $"+getDepenAmount());

System.out.print("\nSalary: $"+salary);

System.out.println("\nTake Home Pay: $"+getTakeHomeSalary());

 

}

public static void main(String args[])

{

Scanner sc=new Scanner(System.in);

System.out.print("\nEnter Salary: $");

double salary=sc.nextDouble();

System.out.print("\nEnter number Of Dependents:$");

int nob=sc.nextInt();

ModifiedPayroll obj=new ModifiedPayroll(salary,nob);

obj.printOutput();

}

}

Explanation/Output:

// For Payroll.java

State Tax: $350.0

Federal Tax: $81.25

Dependents: $62.5

Salary: $1250.0

Take Home Pay: $881.25

// For ModifiedPayroll.java

Enter Salary:$1550.0

Enter number of Dependents:$3

State Tax: $434.0

Federal Tax: $100.75

Dependents: $116.25

Salary: $1550.0

Take Home Pay: $1131.5

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3 years ago
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