Statistics

Statistics

Assessment

Flashcard

Mathematics

9th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the MEDIAN of a data set?

Back

The median is the middle value of a data set when it is ordered from least to greatest. If there are two middle numbers, add them together and divide by 2.

2.

FLASHCARD QUESTION

Front

How do you calculate the RANGE of a data set?

Back

The range is calculated by subtracting the smallest value in the data set from the largest value.

3.

FLASHCARD QUESTION

Front

What is the formula to find the average (mean) of a data set?

Back

The average (mean) is calculated by adding all the values in the data set and dividing by the number of values.

4.

FLASHCARD QUESTION

Front

What is normal distribution?

Back

Normal distribution is a probability distribution that is symmetrical and bell-shaped, where most of the observations cluster around the central peak and probabilities for values further away from the mean taper off equally in both directions.

5.

FLASHCARD QUESTION

Front

What is the difference between mean, median, and mode?

Back

Mean is the average of a data set, median is the middle value, and mode is the most frequently occurring value in the data set.

6.

FLASHCARD QUESTION

Front

What does it mean if a data set is skewed?

Back

A skewed data set is one that is not symmetrical and has a tail on one side. If the tail is on the right, it is positively skewed; if on the left, it is negatively skewed.

7.

FLASHCARD QUESTION

Front

What is a sample in statistics?

Back

A sample is a subset of a population used to represent the entire group in statistical analysis.

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