1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MArishka [77]
3 years ago
5

in a harris poll adults were asked if they are in favor abolishing the penny . Among the responses, 1243 answeered no 481 answer

ed yes and 351 had no opinion. what is the sample proportion of yes responses, and what notation is used to represent it?
Mathematics
1 answer:
Dovator [93]3 years ago
3 0
Given that 481 out 0f 1,243 respondents answered 'yes', the sample proportion is given by:

\hat{p}= \frac{481}{1243} \approx0.39

The notation used for the sample proportion is \hat{p}.
You might be interested in
Look at the graph shown below:
ElenaW [278]
So.. take a peek at the picture... let's get two points from it, hmm say 0,4 notice it touches the y-axis there, and say hmmm -4, 1, almost at the bottom of the line

\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%   (a,b)
&({{ 0}}\quad ,&{{ 4}})\quad 
%   (c,d)
&({{ -4}}\quad ,&{{ 1}})
\end{array}
\\\\\\
% slope  = m
slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{1-4}{-4-0}

\bf y-{{ y_1}}={{ m}}(x-{{ x_1}})\qquad 
\begin{array}{llll}
\textit{plug in the values for }
\begin{cases}
y_1=4\\
x_1=0\\
m=\boxed{?}
\end{cases}\\
\textit{and solve for "y"}
\end{array}\\
\left. \qquad   \right. \uparrow\\
\textit{point-slope form}

once you get the slope and solve for "y", that'd be the equation of the line.
7 0
2 years ago
The salary of two governing bodies in 2008 was $169.3 thousand, and has increased by approximately $4 thousand per year since th
IceJOKER [234]

Answer:

Step-by-step explanation:

Find, find the total increase in salary for 7 years;

If 1 year = $4,000

7 years = ?

=7*4000

=28,000 in total

Original salary = $169,300

Add the total increase in salary to the original salary;

169,300 + 28,000 = 197,300

Therefore, in 7 years, the salary would be $197,300

4 0
3 years ago
They estimate that their current (older) fridge, which they got for free, costs them about $17 a month in electricity charges to
Eddi Din [679]

Step-by-step explanation:

Step one:

given

current (older) fridge

electricity charges= $17 monthly

maintenance costs= $220

let the number of months be x

and the total cost be yo

the expression for the cost for the old fridge is

yo=220+17x---------1

New  fridge

electricity charges= $6 monthly

costs=  $1,050

let the number of months be x

and the total cost be yn

the expression for the cost for the old fridge is

yn= 1050+6x---------2

Hence the system of equation for the situation is

yo=220+17x---------1

yn= 1050+6x---------2

Step two

for 10 years there are 12*10= 120 months

put x= 120 in both expressions and compare the total

yo=220+17(120)---------1

yo=220+2040

yo=$2,260

yn= 1050+6(120)---------2

yn=1050+720

yn=$1770

<u><em>Based on the analysis it will be less expensive to get the new fridge, hence buying the new fridge is worth it.</em></u>

3 0
3 years ago
If 1 gallon of paint covers 360 sq ft, how many gallons will be needed to cover 2650 sq ft with 2 coats. Round to the next whole
KonstantinChe [14]

Answer:

15 gallons

Step-by-step explanation:

6 0
2 years ago
A jar contains 12 red marbles, 16 blue marbles, and 18 white marbles. Four marbles are chosen
tatiyna

Answer:

10.6 all white marbles

Step-by-step explanation:

Submitted to you

8 0
2 years ago
Other questions:
  • Check all that apply​
    10·2 answers
  • 65 +43-11 =<br><br> Help me plz
    15·2 answers
  • What comes after 5,10,20,40,80...
    15·1 answer
  • Explain how you use estimation to check the reasonableness of a solution to a practical problem.
    7·2 answers
  • Solve equation <br><br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bk-4%7D%7B3%7D%20%3D%203" id="TexFormula1" title="\frac{k-4}{
    11·1 answer
  • Find the inverse function.
    10·2 answers
  • Which of the following represents a function?
    8·1 answer
  • Please help on 5 and 6
    10·1 answer
  • Round off 9.999 to the nearest 10​
    12·1 answer
  • Abraham ha $16 to spend on five pencils. After buying them, he has $6.25 left. How much was each pencil?​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!