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3 years ago

What does simple, stratified, systematic, convenience, and voluntary mean in mathematics?

1 answer:

7 0

The terms simple, stratified, systematic, convenience and voluntary are used to refer to samples therefore, in statistics. Simple sample is a type of sample that which is most likely to be chosen. The stratified sample refers to the grouping of samples. Systematic sample is when sample is taken with exact interval unit. Convenience sample is a sample with accessible population items. Voluntary sample is a sample made up of willing participants.

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√36 + √49 Find the perimeter of the rectangle

nasty-shy [4]

perimeter of rectangle is : 2 length+2 width .

to progress in math, you must practice.

So , I let you do the first one which is the esaiest.

48 ) V147+ V147 + V108+V108 = 2V147 +2V108 = 2 ( V147+V108)

8 0

4 years ago

In the election for presidency, Stan Fitz received 542 votes, Elizabeth Stuckey received 430 votes and Gene Sterner received 130

Snezhnost [94]

Answer:

The total number of eligible voters in the town = 1224 ( app.)

Step-by-step explanation:

Let us assume the total number of eligible voters = p

Now, the number of votes received by Stan Fitz = 542

The number of votes received by Elizabeth Stuckey = 430

The number of votes received by Gene Sterner = 130

So, the total number of votes received in total = 542 + 430 + 130 = 1,102

Now, only the 90% of total voters p voted in the election.

⇒ 90% of p = 1102

$\implies \frac{90}{100} \times p = 1102\\ \implies p = \frac{1102\times 100}{90} = 1224$

or, p ≈ 1224

Hence, the total number of eligible voters in the town = 1224 ( app.)

6 0

3 years ago

Factor the polynomial function. f(x)=x^4−x^3−2x−4 f(x) =

stiks02 [169]

The equation used in this problem is f(x)=x^4−x^3−2x−4

The factored version is F(x)=(x-2)(x+1)((x^2)+2)

-I hope this is the answer you are looking for, feel free to post your questions here on brainly in the future.

5 0

3 years ago

Read 2 more answers

When it comes to positive and negative sign if two sign are the same they’re negative right and if they are different they are p

KatRina [158]

Answer:

When you have two negative signs, one turns over, and they add together to make a positive. If you have a positive and a negative, there is one dash left over, and the answer is negative.

I hope this was the answer you were looking for - Lily~Senpai :P

4 0

3 years ago

How many pieces of pipe that are 3/4 foot long must be laid together to make a pipe 27 feet long

jekas [21]

1 piece of pipe ⇒ 3/4 feet

How many pieces? = 27 feet

27 × 1 ÷ 3/4 = 27 × 4/3 = 36 pieces.

7 0

4 years ago

Read 2 more answers