Random Sampling Techniques in Agriculture

Random Sampling Techniques in Agriculture

Assessment

Interactive Video

Mathematics, Computers, Instructional Technology

7th - 8th Grade

Practice Problem

Hard

Created by

Thomas White

FREE Resource

The video tutorial covers the importance of random sampling and how our brains naturally find patterns, which can skew results. It explains using technology like graphing calculators and apps to generate random samples, as well as alternative methods like dice and drawing names. An example of a tree farm is used to illustrate the process of random sampling and calculating averages, emphasizing the need for randomness to achieve accurate results.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to use tools for generating random samples?

To reduce costs

To avoid finding patterns

To save time

To increase accuracy

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in using a graphing calculator for random sampling?

Choose the number of samples

Enter the range of numbers

Select the rand int function

Press the math button

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which website is mentioned as a tool for generating random samples?

Randomizer.org

Random.org

SampleGen.com

NumberPicker.net

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one method mentioned for randomizing without technology?

Using a stopwatch

Flipping a coin

Drawing names from a hat

Using a spinner

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the farmer's example, what is the purpose of using a 10-sided die?

To calculate the average number of trees

To measure the size of the field

To select random rows and columns

To determine the number of trees

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many plots does the farmer randomly select for sampling?

15

10

20

5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the average number of trees per acre found in the farmer's sample?

52.1

50.3

48.4

49.7

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