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3 years ago

The population of a town is divided into three age categories. A random sample of each category is surveyed about voting

Mathematics

2 answers:

Lady_Fox [76]3 years ago

6 0

Answer: Stratified sampling

Step-by-step explanation:

A random sampling where the population is divided into non-coinciding groups are called strata and a sample is picked out by some design within each strata is known as stratified sampling.

Given : The population of a town is divided into three age categories which are strata . A random sample of each category is surveyed about voting

choices.

Then this type of sampling is called stratified sampling.

kvv77 [185]3 years ago

4 0

Answer:

The population of a town is divided into three age categories. A random sample of each category is surveyed about voting choices. this type of sampling is called stratified sampling.

Step-by-step explanation:

Stratified sampling refers to a type of sampling technique whereby an analyst or researcher divides the large population of interest into a number of groups, referred to as strata.

The researcher then obtains a simple random sample from the respective groups or categories.

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Select all that apply.

Lelechka [254]

Answer: The second option and the third option are true.

Step-by-step explanation:

The formula of the line in slope-intercept form is:

$y=mx+b$

Where <em>m </em>is the slope and <em>b </em>is the y-intercept.

By definition, the y-intercept in a direct variation is 0.

Therefore, substituting $m=-3$ and $b=0$ into the equation, you obtain:

$y=-3x+0$

Then, the equation is:

$y=-3x$

As this is a line, it is a linear function.

Therefore, the second option and the third option are true.

8 0

3 years ago

A survey asked 20 mobile phone dealers how many mobile phones were sold during the previous week. Their answers are displayed in

Sidana [21]

The best type of chart for quickly deriving the mode of a sample data is called the Stem-and-Leaf Plot.

In statistics, the Stem-and-Leaf Plot is an easy-to-make easy-to-read kind of graph that is derived from the table holding the sample data.

The Box-and-Whisker Plot on the other hand is best for visually depicting the five-number summary of any set of data, which are:

Minimum
First Quartile
Median (Second Quartile)
Third Quartile; and
Maximum.

It is to be noted that referenced plots are not indicated hence, the general answer.

Learn more about Stem-and-Leaf Plot at:
brainly.com/question/8649311
#SPJ1

8 0

2 years ago

A vendor pays a rock band 1/3 of the total profit from T-shirts and sweatshirts sold at every concert. The vendor paid the rock

cluponka [151]

Let's call x = profit from the sweatshirt sales 1) A vendor pays to rock band 13% of the total profit from T-shirts and sweatshirts sold at every concert. 2) the profit from T-shirts sales was $ 1,632 3) The vendor paid the rock band $ 726 after the last concert We then have the following equation: 0.13 * (1632 + x) = 726 Clearing x: (1632 + x) = (726 / 0.13) x = (726 / 0.13) - 1632 = 3953 $ Answer: the profit from sweatshirt sales was 3953 $

5 0

3 years ago

Qaudriladrial ABCD had cordinates A (3, 5) B(5, 2) C(8, 4) D(6, 7) qaudriladrial ABCD is a what?

Lorico [155]

The quadrilateral is a square

<h3>What are quadrilaterals?</h3>

Quadrilaterals are polygons, that have four sides and four corners

The coordinates are given as: