Applying Percentiles to Student Heights

Oct 13, 2025 by wbrum.org 131 views

Introduction

Percentiles are a way to express the position of a value within a dataset. In this case, we are dealing with the heights of 40 students. The 60th percentile indicates that Kelly's height is at or above the height of 60% of the students. To find out how many students are shorter than Kelly, we need to understand what percentiles represent and how to calculate them.

What are Percentiles?

Percentiles are a measure of the distribution of a dataset. They represent the percentage of values below a certain value. For example, the 25th percentile is the value below which 25% of the data points fall. In this case, the 60th percentile means that 60% of the students have a height below Kelly's height.

Calculating Percentiles

To calculate the number of students shorter than Kelly, we need to find the value of the 60th percentile. Since we are given that Kelly is in the 60th percentile, we can assume that 60% of the students have a height below Kelly's height. To find the number of students shorter than Kelly, we can multiply the total number of students by the percentage of students shorter than Kelly.

Applying Percentiles to Student Heights

Let's apply the concept of percentiles to the heights of the 40 students. We are given that Kelly is in the 60th percentile, which means that 60% of the students have a height below Kelly's height. To find the number of students shorter than Kelly, we can multiply the total number of students by the percentage of students shorter than Kelly.

Calculating the Number of Students Shorter than Kelly

To calculate the number of students shorter than Kelly, we can use the following formula:

Number of students shorter than Kelly = (Total number of students x Percentage of students shorter than Kelly)

In this case, the total number of students is 40, and the percentage of students shorter than Kelly is 60%. Plugging in these values, we get:

Number of students shorter than Kelly = (40 x 60%)

Converting Percentage to Decimal

To calculate the number of students shorter than Kelly, we need to convert the percentage to a decimal. To do this, we can divide the percentage by 100.

60% ÷ 100 = 0.6

Calculating the Number of Students Shorter than Kelly

Now that we have the decimal value of the percentage, we can multiply it by the total number of students to find the number of students shorter than Kelly.

Number of students shorter than Kelly = 40 x 0.6

Solving the Equation

To find the number of students shorter than Kelly, we can solve the equation:

Number of students shorter than Kelly = 40 x 0.6

Number of students shorter than Kelly = 24

Conclusion

In conclusion, to find the number of students shorter than Kelly, we need to understand what percentiles represent and how to calculate them. We can use the formula:

Number of students shorter than Kelly = (Total number of students x Percentage of students shorter than Kelly)

To calculate the number of students shorter than Kelly, we can multiply the total number of students by the percentage of students shorter than Kelly. In this case, the total number of students is 40, and the percentage of students shorter than Kelly is 60%. Plugging in these values, we get:

Number of students shorter than Kelly = (40 x 60%)

Converting the percentage to a decimal, we get:

60% ÷ 100 = 0.6

Multiplying the decimal value by the total number of students, we get:

Number of students shorter than Kelly = 40 x 0.6

Solving the equation, we get:

Number of students shorter than Kelly = 24

Therefore, 24 students are shorter than Kelly.

Additional Information

The height of 40 students were recorded.
Kelly is in the 60th percentile (Assume that all students have different heights).
To find the number of students shorter than Kelly, we need to understand what percentiles represent and how to calculate them.
We can use the formula:

Number of students shorter than Kelly = (Total number of students x Percentage of students shorter than Kelly)
To calculate the number of students shorter than Kelly, we can multiply the total number of students by the percentage of students shorter than Kelly.
In this case, the total number of students is 40, and the percentage of students shorter than Kelly is 60%.
Plugging in these values, we get:

Number of students shorter than Kelly = (40 x 60%)
Converting the percentage to a decimal, we get:

60% ÷ 100 = 0.6
Multiplying the decimal value by the total number of students, we get:

Number of students shorter than Kelly = 40 x 0.6
Solving the equation, we get:

Number of students shorter than Kelly = 24

Q: What is a percentile?

A: A percentile is a measure of the distribution of a dataset. It represents the percentage of values below a certain value. For example, the 25th percentile is the value below which 25% of the data points fall.

Q: How do I calculate the number of students shorter than Kelly?

A: To calculate the number of students shorter than Kelly, you need to multiply the total number of students by the percentage of students shorter than Kelly. In this case, the total number of students is 40, and the percentage of students shorter than Kelly is 60%. Plugging in these values, we get:

Number of students shorter than Kelly = (40 x 60%)

Q: What is the formula for calculating the number of students shorter than Kelly?

A: The formula for calculating the number of students shorter than Kelly is:

Number of students shorter than Kelly = (Total number of students x Percentage of students shorter than Kelly)

Q: How do I convert a percentage to a decimal?

A: To convert a percentage to a decimal, you need to divide the percentage by 100. For example, to convert 60% to a decimal, you would divide 60 by 100:

60% ÷ 100 = 0.6

Q: What is the decimal value of 60%?

A: The decimal value of 60% is 0.6.

Q: How do I multiply a decimal value by a total number of students?

A: To multiply a decimal value by a total number of students, you simply multiply the two values together. For example, to find the number of students shorter than Kelly, you would multiply 0.6 by 40:

Number of students shorter than Kelly = 40 x 0.6

Q: What is the result of multiplying 0.6 by 40?

A: The result of multiplying 0.6 by 40 is 24.

Q: How many students are shorter than Kelly?

A: There are 24 students shorter than Kelly.

Q: What is the total number of students?

A: The total number of students is 40.

Q: What is the percentage of students shorter than Kelly?

A: The percentage of students shorter than Kelly is 60%.

Q: Can I use the formula to calculate the number of students taller than Kelly?

A: Yes, you can use the formula to calculate the number of students taller than Kelly. To do this, you would multiply the total number of students by the percentage of students taller than Kelly. In this case, the percentage of students taller than Kelly is 40% (since 60% of the students are shorter than Kelly).

Number of students taller than Kelly = (40 x 40%)

Q: What is the decimal value of 40%?

A: The decimal value of 40% is 0.4.

Q: How do I multiply a decimal value by a total number of students?

A: To multiply a decimal value by a total number of students, you simply multiply the two values together. For example, to find the number of students taller than Kelly, you would multiply 0.4 by 40:

Number of students taller than Kelly = 40 x 0.4

Q: What is the result of multiplying 0.4 by 40?

A: The result of multiplying 0.4 by 40 is 16.

Q: How many students are taller than Kelly?

A: There are 16 students taller than Kelly.

Q: Can I use the formula to calculate the number of students at the same height as Kelly?

A: Yes, you can use the formula to calculate the number of students at the same height as Kelly. To do this, you would multiply the total number of students by the percentage of students at the same height as Kelly. In this case, the percentage of students at the same height as Kelly is 0% (since Kelly is in the 60th percentile).

Number of students at the same height as Kelly = (40 x 0%)

Q: What is the decimal value of 0%?

A: The decimal value of 0% is 0.

Q: How do I multiply a decimal value by a total number of students?

A: To multiply a decimal value by a total number of students, you simply multiply the two values together. For example, to find the number of students at the same height as Kelly, you would multiply 0 by 40:

Number of students at the same height as Kelly = 40 x 0

Q: What is the result of multiplying 0 by 40?

A: The result of multiplying 0 by 40 is 0.

Q: How many students are at the same height as Kelly?

A: There are 0 students at the same height as Kelly.