5

DdScore: of 1 pt0f16 complrte) -Bus Econ 4.2.4546 company thut mates bodasha: dotonencd tnat eroorco can aasamt0 Md) ware Wd) bodcpar Graeddndo-topb traning 2d&quo...

Question

DdScore: of 1 pt0f16 complrte) -Bus Econ 4.2.4546 company thut mates bodasha: dotonencd tnat eroorco can aasamt0 Md) ware Wd) bodcpar Graeddndo-topb traning 2d" +7 Find Iha dungu funcbon loua Gubcr bodes esser Ded ehmedttmo Findang npniM (21andM7(51.Tno rto charga functon fortta runbar dbydo aerbedntth rutoadto Luo 5 e(pim

Dd Score: of 1 pt 0f16 complrte) - Bus Econ 4.2.45 46 company thut mates bodasha: dotonencd tnat eroorco can aasamt0 Md) ware Wd) bodcpar Graeddndo-topb traning 2d" +7 Find Iha dungu funcbon loua Gubcr bodes esser Ded ehmedttmo Findang npniM (21andM7(51. Tno rto charga functon fortta runbar dbydo aerbedntth rutoadto Luo 5 e(pim



Answers

The scores on a sociology examination are normally distributed with a mean of 70 and a standard deviation of $10 .$ If the instructor assigns As to $15 \%,$ Bs to $25 \%,$ Cs to $40 \%$, Ds to $15 \%,$ and $\mathrm{Fs}$ to $5 \%$ of the class, find the cutoff points for grades $\mathrm{A}-\mathrm{D}$

Send a given question. We have to find the value of five plus two wired up on four minus three Erda. We can multiply with the congregate off denominator so you simplify. It will get 20 plus 15 iota plus a Toyota Last six Saturday square, they added by 16 minus nine. Out I square. We know that Toyota is crazy with the minus one, so it is equals to 29 6, which is 14 plus 23 Arda, divided by 16 plus nine. That is 25 So 14 by 25 plus 23 by 25 iota. Right, So this is matching with the option C to the correct option ISTEA.

And this question were given seven data values and asked to find the percentile rank of each. So we have the data values sorted in order from smallest to largest on. We need to use this formula that tells us what the percentile ISS so P equals the number of numbers that are lower than any other than whatever number we're looking to find. The percentile loves a number of numbers lower. We add 0.5 and divide by the total number of numbers that we have and then multiplied by 100. So in this particular problem, we have seven data values. So on is equal to seven. All right, so is we got through to find each percentile, we need to look at the number of numbers lower. So when I look at my smallest data value, there are zero data values lower than that. So zero plus 0.5 divided by seven and multiplied by 100 and that gives us 7.14 Since we don't have a seven point fourth per position, we go ahead and round that and this number would round down. So this would be approximately the seventh percentile and we continue on in that fashion for each. Each additional number that we find there is one more number that is lower than that. So it's sort of this pattern. So for 28 there is one number lower than 28 in our data set, and we're gonna divide that by seven, multiplied by 100 and that gives us 21 point for until again we round, and that's going to be the 21st percentile. And then 35 has two numbers smaller than it, so two plus zero point 5/7. Multiply that by 100 and we find out that's equal to 35.7, so that would round to the approximately 36 percentile. Now notice that the value of the number doesn't really have any relevance to it. It's just the position of the number that helps us identify percentile. So the 42nd are the value 42 is going to have three numbers less than it. When I add 30.5, I get 3.5 under by seven and multiply that by 100. That translates to be 50th percentile. It's the 40 said the data value 47 has four numbers when we add four numbers lower than it. When we add 40.5, divide by seven multiplied by 100 that becomes the 64th percentile, or we can see that that is the 64th. Percentile. 49 has five numbers lower than that. When we add fought 50.5 divide by seven multiplied by 100. That be we can see that that is the 79th percentile. And finally, the largest number has six numbers smaller than it. So 6.5, divided by seven multiplied by 100. And that is the 93rd percentile. So you may notice that there is a bit of a pattern, so seven plus 14 is 21 plus another. About 14 is 36 plus 14 plus 14 a little bit more than 14 plus 14. Like there's this pattern of adding 14 on. There is a reason for that. So if we take 100% of the numbers and we divide by seven, you'll see that that's a little over 14. It's 14.3, so each sing. Each one of those data values represents about 14.3% of the data, so That's why you see that pattern in the percentiles. Just a fun fact. All right. Next part of the question says, then, find the value of the number in the six or find the buy of the 60th percentile. So for finding the percentile, then we have to use this other formula. C is equal to end times p divided by 100. Where n is the number of numbers that we're looking for and P is the percentile that we're looking for, so C equals. We have seven numbers times. We're looking for the 60th percentile, divided by 100. So when we multiply about that that out, it comes out to 4.2. Well, we don't have a number in the 4.2 position because we only have whole numbers of positions the 1st 2nd 3rd etcetera. So we would round this and we always round up. So this is going to be the number that's in the fifth position. So if we go back over and look at our numbers that are in order, you've got 12345 This number is in the fifth position, so the 60th percentile is 47. Don't know where that line came from, so the 60th percentile is 47

Okay, so we're given a list of 25 tests course, and we're told that the average is 50 on this dinner division is 10. So first we're told to use the normal approximation to estimate the number of scores within 1.257 deviations of average. Um, if you have a Z score chart like a standard as normal distribution table, you confined the area of the senator's normal curve. Under Z equals 1.25 It's a check from that. The area under disease score of Z equals negative 1.25 Um, if you have a T 84 calculator, you can just do that automatically with no most media and just set your lower bound to need a 1.25 You're bound to bump 0.25 Um, and then, since we're using this, invest normal distribution curve, the average zero, and this indications want whichever one of these methods to use you should find that 79% of the values of a distribution lie within 1.25 standard deviations of a normal curve. Um, so that's where the normal approximation. And since we're given 25 scores. Uh, if 79% of them lie within 1.25 divisions then, huh? Bet 19.75 scores. We're clean. Clean me 19.75 scores should buy within the, uh, should lie within 1.25 cent excavations of the average using the normal approximation. Um, so part B, we're gonna need to actually get these scores on. Here's let me pull it up. Okay. Um, support. Bea says how many's was really were within 1.25 standard deviations of average. Um, so again, I'm struggle. Pick the average is 50 and center deviation is 10. So they're asking us how many scores are So one point defense innovations with the equivalent to 1.25 times 10 zero. Um, which is just top five is asking us how many scores are within talk went from the average of 50. So how many scores are in this range? And that's just between, um, 37.5 and 62.5. So how many scores are in this range? Is what they're essentially asking us. Um, so if we look at this'll chart up here, we can't just take a look. Um, if you kind of all out, I believe it's 18 scores that fall within this range. You talk to manually check that, but once you kind of that, it should be 18 scores with this upped.

We're looking for point I so we know it's negative too. So we go to the left, which is negative, and then we go down, which is negative, and we go down five.


Similar Solved Questions

5 answers
Find a particular solution to y" + lOy' + 24y =4_(r+4 ek[5 points]
Find a particular solution to y" + lOy' + 24y =4_(r+4 ek [5 points]...
5 answers
(16 points) A baseball team plays in a stadium that holds 62000 spectators. With the ticket price at $12 the average attendance has been 26000. When the price dropped to 59, the average attendance rose to 31000.a) Find the demand function p(z) , where € is the number of the spectators. (Assume that p(z) is linear:)p(z)26000+5000xb) How should ticket prices be set to maximize revenue?The revenue is maximized by charging $ 17/5per ticket:
(16 points) A baseball team plays in a stadium that holds 62000 spectators. With the ticket price at $12 the average attendance has been 26000. When the price dropped to 59, the average attendance rose to 31000. a) Find the demand function p(z) , where € is the number of the spectators. (Assum...
5 answers
Evaluate tho integral7 dx 50 I7 dx = 6 (Simplity your answer )
Evaluate tho integral 7 dx 5 0 I7 dx = 6 (Simplity your answer )...
5 answers
Sjet leaves the San Antonio Airport at 2:15pn flying an aveeage4468 ADelta airlines United jet leaves the same airport flying an average 560 miles per _ house At 3:45 pm, 428 away from the Delta jet. How far apart will the planes be miles per hour on a course 3hk i5m Vy kx at 5*30 pm? 5 :90
sjet leaves the San Antonio Airport at 2:15pn flying an aveeage4468 ADelta airlines United jet leaves the same airport flying an average 560 miles per _ house At 3:45 pm, 428 away from the Delta jet. How far apart will the planes be miles per hour on a course 3hk i5m Vy kx at 5*30 pm? 5 :90...
5 answers
Perform the indicated operation and write the result in standard form.$$(3+4 i)^{2}+(3-4 i)^{2}$$
Perform the indicated operation and write the result in standard form. $$(3+4 i)^{2}+(3-4 i)^{2}$$...
1 answers
A step experiment is made on a reactor. The results are shown in Fig. P11.4. (a) Is the material balance consistent with the tracer curve? (b) If so, determine the vessel volume $V, \bar{t},$ the $\mathbf{F}$ curve, and the $\mathbf{E}$ curve.
A step experiment is made on a reactor. The results are shown in Fig. P11.4. (a) Is the material balance consistent with the tracer curve? (b) If so, determine the vessel volume $V, \bar{t},$ the $\mathbf{F}$ curve, and the $\mathbf{E}$ curve....
1 answers
Sketch the curve in polar coordinates. $$r-5=3 \sin \theta$$
Sketch the curve in polar coordinates. $$r-5=3 \sin \theta$$...
5 answers
In Exercises 53 and $54,$ see FiGuRE 13 and use the fact that $c^{2}=a^{2}-b^{2},$ where $a^{2}>b^{2}$The orbit of Venus around the sun (one of the foci) is an ellipse with equation$$ rac{x^{2}}{5013}+ rac{y^{2}}{4970}=1$$where $x$ and $y$ are measured in millions of miles. (Figure can't copy)(a) Find the greatest distance between Venus and the sun.(b) Find the least distance between Venus and the sun.
In Exercises 53 and $54,$ see FiGuRE 13 and use the fact that $c^{2}=a^{2}-b^{2},$ where $a^{2}>b^{2}$ The orbit of Venus around the sun (one of the foci) is an ellipse with equation $$ \frac{x^{2}}{5013}+\frac{y^{2}}{4970}=1 $$ where $x$ and $y$ are measured in millions of miles. (Figure can&#x...
5 answers
Find the length of the unknown side of each triangle.
Find the length of the unknown side of each triangle....
5 answers
The probability of catching a fish by bald eagle is .70. Find the probability that 7th fish will be caught by the bald eagle in his 1Sth try: Find the average number of failures of catching seven fishes0
The probability of catching a fish by bald eagle is .70. Find the probability that 7th fish will be caught by the bald eagle in his 1Sth try: Find the average number of failures of catching seven fishes 0...
5 answers
You draw a ray that impinges on an equilateral prismperpendicular to the surface on the left side. The prism is madeout of aerogel that has an index of only n = 1.1. At what angle tothe normal does the ray exit on the right side?072184557
You draw a ray that impinges on an equilateral prism perpendicular to the surface on the left side. The prism is made out of aerogel that has an index of only n = 1.1. At what angle to the normal does the ray exit on the right side? 0 72 18 45 57...
5 answers
Provide a chemical mechanism (electron pushing) for any enzymethat utilizes a heme or non-heme diiron cofactor.
Provide a chemical mechanism (electron pushing) for any enzyme that utilizes a heme or non-heme diiron cofactor....
5 answers
JW of 27 deviation size 81 point) seleated 'theri distribution population of "theh Wopuey sample eneanDillestion left uniform binomial 28 skewed approximately point) normal
jW of 27 deviation size 81 point) seleated 'theri distribution population of "theh Wopuey sample enean Dillestion left uniform binomial 28 skewed approximately point) normal...
5 answers
Work out the Lewis structure that is best for formal charge for the molecule; bromine trifluoride; BrFs Answer the following questions based on your completed Lewis structure: Enter integer numbers, including 0 when appropriate;The number of lone pairs around the central atom is;The number of single bonds arourd the central atom is:The nurnber of double bonds around (he centra atomThe number of triple bonds around the central atom is:
Work out the Lewis structure that is best for formal charge for the molecule; bromine trifluoride; BrFs Answer the following questions based on your completed Lewis structure: Enter integer numbers, including 0 when appropriate; The number of lone pairs around the central atom is; The number of sing...

-- 0.021824--