UNIT 1 REVIEW

UNIT 1 REVIEW

Assessment

Flashcard

Mathematics

9th Grade

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the mean of a data set?

Back

The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the count of numbers.

2.

FLASHCARD QUESTION

Front

How do you calculate the mean for the data set: 1, 78, 88, 89, 99, 100?

Back

Mean = (1 + 78 + 88 + 89 + 99 + 100) / 6 = 75.83 (rounded to 2 decimal places).

3.

FLASHCARD QUESTION

Front

What is variability in statistics?

Back

Variability refers to how spread out or dispersed the values in a data set are. It indicates the degree of difference among the data points.

4.

FLASHCARD QUESTION

Front

Which store has higher variability in their prices: Bookstore A or Bookstore B?

Back

Bookstore B has higher variability in their prices.

5.

FLASHCARD QUESTION

Front

What is the median in a data set?

Back

The median is the middle value when the numbers are arranged in order. If there is an even number of values, the median is the average of the two middle numbers.

6.

FLASHCARD QUESTION

Front

What is the median of the box plot data: 20, 30, 62, 70?

Back

The median is 62.

7.

FLASHCARD QUESTION

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, showing the frequency of data points within specified ranges (intervals).

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