20 points!!Which of these is an example of a non-random sample?





A cereal company surveys their employees about breakfast food preference.







A farmer is choosing grains of wheat from a field to test for a new flavor of cereal.







A cereal company puts a winning ticket in one box of cereal out of 100,000 boxes.







Ten college students at a college, population 50,000, are chosen to taste test a new cereal.

The one possible number that fits this rule is 495

Step-by-step explanation:

Let us revise how we can round a number

1. When we round a number to the nearest ten we look to the one

digit if its 5 or greater than 5 we add the ten digit by 1 and put the

one digit 0, if the one digit less than 5 we keep the ten digit as it

and put the ones digit 0

2. When we round a number to the nearest hundred we look to the

ten digit if its 5 or greater than 5 we add the hundred digit by 1 and

put the ten and one digits 0, if the ten digit less than 5 we keep the

hundred digit as it and put the ten and one digits 0

Examples:

If 256 rounded to the nearest ten, then it will be 260

and if rounded to the nearest hundred, then it will be 300

If 543 rounded to the nearest ten, then it will be 540

and if rounded to the nearest hundred, then it will be 500

Now let us solve the problem

We are looking for 3 digit number when rounded to the nearest ten

and to the nearest hundred give the same answer

∴ Its unit digit must be 5 or greater than 5 to add ten digit by 1

∴ Its ten digit must be 9 because when we add 9 by 1 it will be 10

  and that mean the hundred digit will added by 1

- If The number is 495

∵ Its unit digit is 5

∴ When we round it to the nearest ten we will add the ten digit 9 by 1

∴ The ten digit will be 10 then we will add hundred digit by 1

∴ The hundred digit is 5 , ten digit is 0 and we will put the one digit 0

∴ The number after rounded to the nearest ten is 500

∵ When we round it to the nearest hundred we will look to the ten digit

∵ Its ten digit is 9

∴ We will add the hundred digit 4 by 1 and put the ten and one digits 0

∴ The number after rounded to the nearest hundred is 500

The one possible number that fits this rule is 495

Learn more:

You can learn more about rounding to significant figure in brainly.com/question/12445529

#LearnwithBrainly

Answer:

374 mm

Step-by-step explanation:

There are two rectangles and one triangle. This means that we need to add the sum of two rectangles and one triangle together.

Rectangle 1:

19*9=171

Rectangle 2:

19*9=171

Triangle:

8*23*1/2=32

(We divide by 1/2 because it's a triangle)

Now we add them together.

171+171+32=374

In the end, the answer is 374. I didn't show all of my work because most of it was done mentally.

Answer:

Vanilla

Step-by-step explanation:

Let us first know the definition of modal class to find the modal class distribution.

Modal class is the class which occurs maximum number of times (or) the highest frequency in the data.

In the given data, The highest frequency occurred is 24, which is for the flavour Vanilla.

That is vanilla flavour is liked by most of the students.

So, Modal class for the given data is vanilla.

Answer:

Vanilla

Step-by-step explanation:

The modal class is the largest group on the table.