Sale amounts during lunch hour at a local subway are normally ditributed, with a mean $ 7.86, and a standard deviation og $ 1.03.
Round all of your final answers to four decimal places.
a. Find the probability that a randomly selected sale
was at least $ 6.92?
b. A particular sale was $ 10.57. What is the
percentile rank for this sale amount?
c. Give the sale amount that is the cutoff for the
highest 85 %
d.What is the probability that a randomly selected
sale is between $6.00 and $8.00?
e. What sale amount represents the cutoff for the
middle 39 percent of sales?Correct ( The smaller number
here)Correct(Bigger number here)
In: Statistics and Probability
The table gives the average number of voters in a certain city in each of three political parties during the last 12 years, along with the average number that voted in presidential elections during this period.
| Political Party | |||
|---|---|---|---|
| Republican | Democratic | Independent | |
|
Registered voters |
4500 | 6100 | 2200 |
| Voted | 2925 | 2379 | 1100 |
(a) For each political party, use these data to find the probability that a person selected at random from the registered voters in the party will vote in the next election. (Enter your probabilities as fractions.)
| Pr(Republican will vote) | |
| Pr(Democrat will vote) | |
| Pr(Independent will vote) |
(b) For which party is the probability highest?
RepublicanIndependent Democrat
In: Statistics and Probability
come up with an “elevator speech” (a brief explanation that helps you convey the essence of the model’s main idea) for each of the assigned theories. When you have developed your elevator speech, copy it into the Google Slides document posted in the forum provided. I need help writing an elevator speech on Political Economy
In: Economics
In: Nursing
Roger and Zoë spend their vacation time at a nice cottage that they own in the countryside. Farmer Torti lives next door and normally lets his twelve sheep graze in his field. The sheep eat so quickly that it causes them to burp loudly, a very disruptive sound for Roger and Zoë vacationing next door. Torti is willing to remove sheep from the field when Roger and Zoë are there, but his marginal cost of doing so is $1 for the first sheep he removes, $2 for the second sheep, $3 for the third, etc. Roger and Zoë derive a (combined) marginal benefit of $12 for the first sheep Torti removes, $11 for the second sheep he removes, $10 for the third sheep he removes, etc.
a. Calculate the efficient number of sheep in the field if Roger and Zoë stay at the cottage.
b. Calculate the maximum amount Roger and Zoë would be willing to pay Torti to reduce his sheep to the efficient number.
c. Calculate the minimum amount Torti would be willing to accept to reduce his sheep to the efficient number
d. Calculate the range of prices per sheep that Roger and Zoë could pay Torti to achieve the efficient number.
A sound barrier built between the two properties could block 50 percent of the burping sound.
e. Calculate the efficient number of sheep in the field if there were a sound barrier and if Roger and Zoë stay at the cottage.
f. Calculate the total benefit to Roger and Zoë if the sound barrier were there and the corresponding efficient number of sheep were in the field.
g. Calculate the total cost to Torti if the sound barrier were there and the corresponding efficient number of sheep were in the field.
h. Calculate the maximum amount Roger and Zoë would be willing to contribute to the construction of the sound barrier.
i. Calculate the maximum amount Torti would be willing to contribute to the construction of the sound barrier.
In: Economics
a) You have installed the DNS server role on a
computer running Windows Server 2016
and in the process of configuring forward/reverse lookups. Explain
the difference
between “ping www.google.com” and “ping the IP address of Google
server at
172.217.167.68”. You may want to try both and observe any
differences. Your answer
should include your explanation, as well as screenshots.
In: Computer Science
In: Statistics and Probability
Q3) Ahmed plays a game where he tosses two balanced 4 sided-dice, each with faces labeled by 1, 2, 3 and 4. He wins 2 points if the sum is 4. He wins 1 point if the sum is greater than 4. He loses k points if the sum is less than 4.
i. Find the probability distribution sum.
ii. Find the value of k which achieves the fairness of game. (i.e. The fairness is achieved if the game is not biased neither to loss or win)
In: Statistics and Probability
A player plays the following game with a casino: a coin is tossed until a tail appears. The player wins 2^n dollars where n is the number of heads before a tail appears. If there are no heads, the player wins 2^0 = $1. Find the standard deviation of the amount the casino pays the player if the casino has only $17 (so, if the player wins more than $17, the casino still only pays $17). Do not round any intermediate results, but round the final answer to the nearest cent.
In: Statistics and Probability
a freer elevator or a Penfield elevator is used to remove atherosclerotic plaque from an aterey. In what other surgical specialties are these instruments used?
In: Nursing