If a new student joins and scores 110, how would this affect the quartiles?

The quartiles may shift slightly higher.

The quartiles will remain unchanged.

The quartiles will no longer be valid.

A student argues that the 1st quartile means 25% of students scored exactly at Q1. Is this statement correct? Explain why or why not.

No, Q1 means 25% of students scored below it, not at it

Yes, Q1 represents the exact score of 25% of students.

No, Q1 is just the lowest score in the dataset.

Yes, Q1 is the mode of the lower half of the data

Mr. Reyes wants to analyze the distribution of scores. Why is the interquartile range (IQR) important in this analysis?

It shows the spread of the middle 50% of data

It determines the highest score.

Mr. Santos wants to explain why quartiles, deciles, and percentiles are useful in analyzing student performance. Which of the following is the best reason?

They show the distribution of students' performance levels.

They help calculate the mean score.

They replace traditional grading methods.

They identify the highest and lowest scores only.

If the number of students increases from 40 to 50, how would the quartiles, deciles, and percentiles be affected?

They would shift since class boundaries and cumulative frequencies would change.

They would no longer be useful.

They would decrease because of the added students.

If a student scores 45, are they above or below the median percentile? What is their percentile rank?

75th percentile (well above median)

Ms. Garcia wants to explain why percentile rank is a useful tool for student assessment. Which of the following is the best reason?

It shows how a student's score compares to the entire class.

It helps determine the class average.

It identifies only the highest and lowest scores.

It replaces letter grading completely.

Which is the correct arrangement of the steps in formulating statistical mini research?

Collecting Data, Organizing Data, Presenting Data, Analyzing and Interpreting Data

Analyzing and Interpreting Data, Collecting Data, Organizing Data, Presenting Data

Organizing Data, Presenting Data, Analyzing and Interpreting Data, Collecting Data

Presenting Data, Analyzing and Interpreting Data, Collecting Data, Organizing Data

Which of the following is an example of a statistical question?

What was the highest grade recorded in a Math Test?

What time did Mary sleep at night?

How many votes did the winning candidate for President in the last SSLG Election?

Which of the following is an example of statistical data?

The height of students in a Grade 10 class

The name of your favorite teacher

The brand of laptops used by students

The color of school uniforms in different schools

In formulating mini research, what do you call the process of assigning meaning to the collected information and determining conclusions, significance and implications of the findings?

Analyzing and Interpreting Data

What is the primary purpose of Ana's mini statistical research?

To determine patterns in study habits using statistical methods

To identify the names of students who study the most

To record every student's exact study time for the school records

To change how students study based on her opinion

Mavey calculated the mean study hours of her classmates. What does the mean represent in her research?

The total study hours divided by the number of students surveyed

The most frequently occurring study time

The middle value when study hours are arranged in order

The study time of the student who scored highest on the test

Mavey decided to use a bar graph to present her data. Why is this an appropriate choice?

It allows her to compare the number of students in each study-hour category

It ranks students based on their study habits

It helps her determine which study time is the best

It ensures that all students have the same study habits

After analyzing the data, Ana noticed that students who studied longer generally had higher test scores. What conclusion can she make?

There is a possible relationship between study hours and test scores

Studying more hours directly causes better grades

Students who study more hours are always the smartest

Every student must study for the same number of hours to get good grades

Ana wants to improve her research by making the results more accurate. What should she do?

Increase the number of students surveyed to get a larger sample

Only ask the top-performing students about their study habits

Ignore the outliers in her data, even if they are valid

Make up data for students who did not respond to balance the result

Mathematics Performance Evaluation

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•

Mathematics

•

10th Grade

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Practice Problem

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Hard

Nonito Adalid

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40 questions

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Mathematics Performance Evaluation

40 questions

It is the formula used to locate the position of the lower quartile.

When a distribution is divided into hundred equal parts is called __.

The lower quartile is equal to

What is the 1st quartile (Q1) of the scores?

What is the score should Alyssa get to be able to belong to the top 25% of the class?

Calculate the interquartile range (IQR) for the class scores.

Mr. Reyes wants to determine the 6th decile of the scores. What is the closest estimate for D6?

A student who scored 55 wants to know which decile they are in. Based on the data, which decile does 55 belong to?

The top-performing students are in the 90th percentile or above. What is the closest estimate score?

The principal wants to reward the top 10% of students. What score should be the minimum for eligibility?

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