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
Morgarella [4.7K]
3 years ago
6

Find the point estimate of the proportion of people who wear hearing aids, if in a random sample of 304 people, 20 people wear h

earing aids.
Mathematics
2 answers:
aalyn [17]3 years ago
6 0
Point estimate is the method of looking for an approximate value of some parameter - example: the mean (average) and it could be also the sample standard deviation of a population from random samples of the population.
To get the point estimate: 20 (people wearing hearing aids) / 304 (total random sample) = 0.0657894  or 0.066
nadya68 [22]3 years ago
5 0
<span>A point estimate is the use of a single set of sample data to estimate a parameter for a whole population. It may not have statistical rigor, but rather represents a "best guess" given available data. Thus, if in a random sample of 304 people, 20 happen to be wearing hearing aids, the point estimate of the prevalence of hearing aid use in the population is 20/304 = 6.6%</span>
You might be interested in
You have $500,000 saved for retirement. Your account earns 8% interest. How much will you be able to pullout each month, if you
borishaifa [10]

The rule of the payout annuity is

P=\frac{d(1-(1+\frac{r}{n})^{-nt})}{\frac{r}{n}}

P is the initial amount

d is regular withdrawals

r is the annual rate in decimal

n is the number of periods in a year

t is the time

Since you have $500 000 saved, then

P = 500000

Since the interest is 8%, then

r = 8/100 = 0.08

Since the time is 15 years, then

t = 15

Since you want the monthly amount, then

n = 12

Substitute them in the rule to find d

\begin{gathered} 500000=\frac{d(1-(1+\frac{0.08}{12})^{-12(15)})}{\frac{0.08}{12}} \\ 500000(\frac{0.08}{12})=d(1-(\frac{151}{150})^{-180}) \\ \frac{10000}{3}=d(1-(\frac{151}{150})^{-180}) \\ \frac{\frac{10000}{3}}{(1-(\frac{151}{150})^{-180})}=d \\ 4778.260422=d \end{gathered}

Then you will be able to pull $4778.260422 each month

4 0
1 year ago
A skier is trying to decide whether or not to buy a season ski pass. a daily pass is $75. A season ski pass is $350. The skier w
pishuonlain [190]
Since the skier has to rent skis for 30 dollars per day with both passes, we can ignore it while solving the question.

A season pass is 350, while a daily pass is 75.

\frac{350}{75} = \frac{25\times 14}{25\times 3} = \frac{14}{3} = 4 \frac{2}{3}

So a seasonal pass is equivalent to having 4.6667 daily passes. And you can't buy 0.6667 of a pass.

So, if you went at least 5 days with a seasonal pass, then the seasonal pass would be less expensive than a daily pass.
6 0
3 years ago
(16.379-0.879)/4.2×1.241
FrozenT [24]

Answer:

go ask ur teacher u fool brain less stupid

8 0
3 years ago
Pleaseeee help asappppppp
lord [1]

Answer:

ED = 12

<em><u>HOPE </u></em><em><u>THIS </u></em><em><u>HELP </u></em><em><u>YOU </u></em><em><u>,</u></em><em><u> </u></em><em><u>FOR </u></em><em><u>ANY </u></em><em><u>QUESTION </u></em><em><u>PLEASE </u></em><em><u>ASK </u></em><em><u>ME </u></em><em><u>.</u></em>

7 0
2 years ago
Which three lengths
Tanya [424]

Answer:

B)

Step-by-step explanation:

You need to add the first 2 numbers and the answer needs to be bigger than the third number and if you add 10 + 5 will be 15 and the third number is 17, so the answer of this is the B

3 0
3 years ago
Other questions:
  • HELP <br>Which equations represent hyperbolas?
    15·2 answers
  • Percents that are added together are _______ percents.
    11·1 answer
  • how much does britney need to buy 2 pearl bracelets and 2 emerald rings emerald ring price 6,395.00 Pearl bracelets prince 5,314
    6·2 answers
  • In the figure m&lt;1=94. Find the measure of each angle. Tell which postulate(s) or theorem(s) you used.
    10·1 answer
  • What plus what equals -6 but when the two numbers are multiplied equals 8?
    13·1 answer
  • What is the Surface area and volume of all the parts of the castle?
    11·1 answer
  • Four students volunteer at the hospital. Casey volunteers 20.7 hours, Danielle, 20 3/4 hours Javier 18 9/10 hours, and Forrest,
    15·2 answers
  • Recall that two angles are complementary if the sum of their measures is 90°. Find the measures of two complementary angles if o
    14·1 answer
  • 32゚ 15' 66" is the same as ____ Round your answer to the nearest 100th of a degree
    9·1 answer
  • Help pleaseee Im trying to get an A in class
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!