Define suitable populations from which the following samples are selected: (a) Persons in 200 homes in the city of Richmond are called on the phone and asked to name the candidate they favor for election to the school board. (b) A coin is tossed 100 times and 34 tails are recorded. (c) Two hundred pairs of a new type of tennis shoe were tested on the professional tour and, on average, lasted 4 months. (d) On five different occasions it took a lawyer 21, 26, 24, 22, and 21 minutes to drive from her suburban home to her midtown office.

Answers

Answer 1

Using sampling concepts, it is found that the suitable populations are:

a) All Richmond residents.

b) Results of all coin tosses.

c) All pairs of the new type of tennis shoe.

d) The average time on all days is takes to drive from her suburban home to her midtown office.

An example of sampling is asking a sample of 500 Buffalo Bills fans if they think their offense should run the ball more.

The population is all Buffalo Bills fans.

Hence, following the example, first identifying the sample and then expanding it for the population the items are answered.

Item a:

Sample of 200 Richmond homes, hence, the population is all Richmond residents.

Item b:

Sample from the results of 100 coin tosses, hence the population is the results of all coin tosses.

Item c:

Sample from 200 pairs of the new tennis shoe, hence the population is all the pairs of this new tennis shoe.

Item d:

Sample for the time it took to drive from her suburban home to her midtown office of 5 days, hence, the population is the time for all days.

A similar problem is given at https://brainly.com/question/25122507


Related Questions

please help me I really need help

Answers

1) 300 squared cm

2) 105 squared cm

3) about 165.75 squared cm

4) about 211.4 squared cm

Find UV if HV = 12. Please help!!

Answers

If HV= 12 and we are trying to find UV. We just need to divide by 2 because UV is half. So UV=6

hope that helped!

Answer:

..

Step-by-step explanation:

If HV= 12 and we are trying to find UV. We just need to divide by 2 because UV is half. UV=6

write a math story about this problem : -4n = -24 how to find n!

Answers

Answer:

n=6

Step-by-step explanation:

-4n=-24

4n=24

n=24÷4

=6

Select the correct answer.
Ann is buying a house that costs $250,000. She is making a down payment of 15 percent, and her closing costs will amount to 3 percent. Over the life of her loan, she will pay $282,089.89 in monthly payments. What is the total cost of her house?

A.
$327,089.89
B.
$338,390.89
C.
$339,560.89

Answers

Answer:

c i think

Step-by-step explanation:

I'm sorry if not

A polynomial that has two terms is a(n) ?.

Answers

Answer: Binomial

Monomial= 1 term

Binomial= 2 terms

Trinomial=3 terms

Polynomial= 4 terms or more

the triangles are similar, Write a similarity statement for the triangles “PLZ HELP”

Answers

Answer:

Option 3 or C

Triangle NPM ~ Triangle NQR

Step-by-step explanation:

g(x)=-4x+1;{-5, -1, 0, 2, 10}

Answers

Answer:G(-5)=21,  G(-1)=5 G(0)=1 G(2)=-7 G(10)=-39

Step-by-step explanation:


????????????????????????????????

Answers

Answer:

Step-by-step explanation:

step by step explanation

Answer:

P = 9/25

Step-by-step explanation:

yeah-ya........ right?

Twelve square tiles, each measuring 5 inches
on a side, are laid side by side. What is the total
width of the tiles?

Answers

Answer:

pretty sure 60, 5 x 12

Step-by-step explanation:

just do 5 x 12 if there's 12 tiles and their measurement is 5 inches each

What are the integer solutions to the inequality below?

[tex]10 \leq 2x \leq x+7[/tex]

Answers

Here's ur perfect answer

3x- 25 = 11x -5 + 2x



Please show working.

Answers

[tex]3x-25 =11x -5 +2x \\\\\implies 3x -25 = 13x-5\\\\\implies 13x -3x = 5-25\\\\\implies 10x = -20\\\\\implies x = -2[/tex]

Answer: x=-2.

Step by step:

3x-25=11x-5+2x

Combine like terms!

3x-25=(11x+2x)+(-5)

3x-25=13x+(-5)

3x-25=13x-5

Subtract 13x on both sides!

-10x-25=-5.


Add 25 to both sides.

-10x=20.

Divide both sides by -10.

x=-2.

Hope this helps!! :)

write the equation of the line that passes through the points (2 , -1) and has a slope of - 3​

Answers

Answer:

y=-3x+5

Step-by-step explanation:

y=mx+b

m=slope or gradient (=-3)

y=-3x+b  

Add your points

(2, -1)

-1=(-3 x 2)+b

-1= -6+b

-1+6=b

b=5

y=-3x+5

Answer:

[tex]\boxed {\boxed {\sf y= -3x+5}}[/tex]

Step-by-step explanation:

We are asked to find the equation of the line that passes through the point (2, -1) and has a slope of -3.

We are given a point and the slope, so we can use the point-slope formula.

[tex]y-y_1=m(x-x_1)[/tex]

In this formula, m is the slope and (x₁, y₁) is the point the line passes through.

The line has a slope of -3 and passes through (2, -1).

m= -3 x₁= 2 y₁= -1

Substitute the values into the formula.

[tex]y--1= -3 (x-2)[/tex]

[tex]y+1= -3 (x-2)[/tex]

Distribute the -3 on the right side. Multiply each term inside the parentheses by -3.

[tex]y+1 = (-3*x) + (-3*-2)[/tex]

[tex]y+1=(-3x) + (6)[/tex]

[tex]y+1=-3x+6[/tex]

Subtract 1 from both sides of the equation to isolate the variable y.

[tex]y+1-1=-3x+6-1[/tex]

[tex]y=-3x +5[/tex]

The equation of the line is y= -3x+5.

Solve this equation with a variable term on both sides:

5.1y + 21.3 = -0.3y - 24.6

What is the solution?

y=

Answers

5.1y + 21.3 = -0.3y - 24.6
5.1y + 0.3y = -24.6 - 21.3
5.4y = -45.9
y = -8.5
5.1y+0.3y= -21.3 - 24.6
5.4y = -45.9
Y = -8.5

What are the group of boxes or cells in a table that go side to side (horizontal) is called?.

Answers

Answer:

A group of boxes in a table that go side to side (horizontal) are called: Grids.

:)

A group of boxes in a table that go side to side (horizontal) are called Grids.

What is a grid answer?

A pattern of intersecting horizontal and vertical lines that creates a grid of squares is known as a rd. A grid is also a system of wires that connects several locations in a region with electricity: a power grid.When straight lines cross over one other to form squares, it is said to be in a grid pattern. The grid on maps is designed to guide you in finding a certain object or location. ...an ironwork grid.An illustration of a grid would be the lines on graph paper. noun. (football) (football) the field.

Learn more about grid

brainly.com/question/28586483

#SPJ2

True or false: The relationship among the triple constraint variables is such that if any one changes, at least oneother is likely to be affected.

Answers

We want to see if the statement "The relationship among the triple constraint variables is such that if any one changes, at least one other is likely to be affected." is true or false. This is true.

A relationship among the triple constraint variables is written as:

y = f(x, z)

Where the 3 variables are x, y, and z and represent cost, scope, and time.

This means that if either x or z changes, also does y.

And we always can rewrite the relationship in two other forms:

x = g(z, y)

z = h(x, y)

Then we can see that always that one variable changes, at least one other variable changes in response, then the statement is true.

If you want to learn more, you can read:

https://brainly.com/question/25368922

What are the values of each variable?

Answers

Answer:

3x-10=x+15+25

3x-10=x+40

3x-x=40+10

2x=50

x=50/2

x=25

X^2+5*x^3+7
Solve pls lol

Answers

don't know sorry

Step-by-step explanation:

sorry very very school

Answer:

5x^3+x^2+7

Step-by-step explanation:

Alexander earns ​12% commission each week. Last​ week, he sold ​$6,400 worth of stocks. How much did he make last week in​ commission? If he averages that same amount each​ week, how much did make in commission in​ 2011?

Answers

Answer:

Commission = $768

Total amount commission in 2011 = $41,472

Step-by-step explanation:

Commission = Sales × 12% of sales

Commission = $6,400 × .12

Commission = $768

Number of weeks in a year = 52 weeks

Total amount commission in 2011 = Commission per month × Number of

                                                            weeks in a year

Total amount commission in 2011 = $768 × 52

Total amount commission in 2011 = $41,472

What is the value of x

Answers

Answer:

90-56= 34

good luck!

Answer:

90-56=34

Step-by-step explanation:

90 degrees minus the given amount of the other degrees will give u the answer 90-56=34

Help me pls i need help

Answers

Answer:

I'm pretty sure it is LINEAR.

I may be wrong

Step-by-step explanation:

BRAINLIEST?

Answer:

linear

Step-by-step explanation:

the inputs are not the same.

im not exactly sure, but im taking this lesson and thats what i learned :)

help me brainlist if you right Mona is inviting 10 friends to a party. Each friend wants 5 cookies and each box has 10 cookies. How many boxes should Moana get?​

Answers

Answer:

its 5 boxes

Step-by-step explanation:

. Write the equation of a line passing through the points (3,-1) and (6,7).
(Hint - Use the Calculator)

Answers

Step-by-step explanation:

the most usual firm of line equation is

y = ax + b

a is the slope of the line and is expressed as the ratio

y coordinate change / x coordinate change

when going from one point to the other.

b is the y-interception (the bake of y when x = 0).

once we have the slope, we get b by using the coordinates of one of the given points as x and y in the equation and solve for b.

the slope a :

x changes by +3 (from 3 to 6)

y changes by +8 (from -1 to 7)

so, the slope is +8/+3 = 8/3

our line equation now looks like

y = (8/3)x + b

let's simply use the first point

-1 = (8/3)×3 + b

-1 = 24/3 + b = 8 + b

-9 = b

and the full line equation is

y = (8/3)x - 9

What is the slope of the equation: 5x – 2y = 20?

Answers

Answer:

y=5/2x -10

(5/2 - slope)

Step-by-step explanation:

hope it helps

help plssah
answer the question...

Answers

Answer:

2

Step-by-step explanation:

PARALLEL PERPENDICULAR OR NEITHER OR SAME LINE

Answers

Same line good luck have a nice day

Answer:

Neither

Step-by-step explanation:

Parallel lines need to have the same slopes, but lines A and B have different slopes, so parallel is off the list.

Perpendicular lines need slopes that multiply to -1, meaning one of them must be negative. This is not possible if both are greater than 1, making them positive. The lines cannot be perpendicular.

If they are the same line, they need the same slopes. However, they have different slopes, making this option impossible.

We are left with neither.

What is Logarithms ?

Answers

Answer:

In mathematics, the logarithm is the inverse function to exponentiation. That means the logarithm of a given number x is the exponent to which another fixed number, the base b, must be raised, to produce that number x.

Answer:

In mathematics the logarithm is the inverse function to exponentiation. That means the logarithm of a given number x is the exponent to which another fixed number, the base b, must be raised, to produce that number x.

Ania has read 3/5 of a book. She has read 60 pages so far. How many pages are in thewhole book?

Answers

Answer:

100

Step-by-step explanation:

hope this helps!!!!!!

How to subtract? how can we minus 7 from 2 how can we maintain sign​

Answers

Answer:

a² - b² = (a+b)(a-b)

Step-by-step explanation:

= 2x² - 7x²

=(2x + 7x)(2x - 7x)

Answer:

-5x²

Step-by-step explanation:

combine like terms in 2x²-7x²

I neeed help I’ll give brainlist plzzz asap

Answers

Answer: 2nd, 4th, and 5th options

Step-by-step explanation:

The x-intercept is where the graph meets the x axis line and is also known as being the roots/zeros of an expression. hope this helps

whats bigger? -6 or -5????? PLZ HELP

Answers

Answer:

-5 is more positive than -6. SO bigger, I think means less negative, so -5.

Step-by-step explanation:

Answer:

-5

Step-by-step explanation:

On a number scale, -5 is bigger than -6 because it is less negative than -6. You can also think about it in context: if the temperature was -5 degrees it would be warmer than -6 degrees so is therefore bigger!

Hope this helps!

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