The marks obtained by a number of students in a certain subject are assumed to be approximately

Fantastic news! We've Found the answer you've been seeking!

Question:

The marks obtained by a number of students in a certain subject are assumed to be

approximately normally distributed with mean 55 and a SD of 5. If 5 students are taken

at random from this set, then what is the probability that 3 of them would have scored

marks above 60?

Related Book For answer-question

Introduction to Mathematical Statistics and Its Applications

ISBN: 978-0321693945

5th edition

Authors: Richard J. Larsen, Morris L. Marx

See More Books

Posted Date: Sep 05, 2020 07:11 AM

See More Questions

Audit risk is the risk that the auditor expresses an inappropriate audit opinion when the financial statements are materially misstated. The auditor considers audit risk when planning and performing...
A government offers to let a number of students at a public school transfer to a private school under two conditions: It will transmit to the private school the same per-pupil subsidy it provides the...
A random variable Z that is normally distributed with mean = 0 and standard deviation = 1 is said to have the ________.
Determine the resultant force and specify where it acts on thebeam measured from A . Assume F = 540 lb . Part A Determine the magnitude of theresultant force. Part B Determine the distance between A...
An experiment was conducted to compare the densities (in ounces per cubic inch) of cakes prepared from two different cake mixes. Six cake pans were filled with batter A, and six were filled with...
Determine the free-end displacements and the element stresses for the plate discretized into four triangular elements and subjected to the tensile forces shown in Figure P7-12. Compare your results...
Why are grooming and attire so important in selling? How do you know if you are dressed appropriately for a customer?
Under what circumstances would you consider the use of terms that are high in connotative meaning to be ethical? When would you consider it to be unethical? Explain your reasoning.
Consider a 10 year bond with face value $1,000, pays 6% coupon annually and has a yield-to-maturity of 7%. How much would the approximate percentage change in the price of bond if interest rate in...
Shake Shack Incorporated, which began as a hot dog stand in 2001, now has more than 200 locations worldwide. The following is adapted from Shake Shack's financial statements for the quarter ended...
You are a chief of a large city agency. Your department is working with the Federal government through the Secure Communities program. Your city has been declared a sanctuary city and has developed a...
The issued share capital of Edwards ple consists of 800,000 ordinary shares. There are no preference shares. Some years ago, the entity issued EUR 2m of 10 per cent convertible loan stock. The...
(a) What is a construction contract? (b) How and why should construction contracts be combined or segmented? (c) How is the stage of completion determined? (d) What is the effect of variations and...
Section 11.5.4, used the linear associator algorithm to make two vector pair associations. Select three (new) vector pair associations and solve the same task. Test whether your linear associator is...
The appellant is Arkansas Insurance Commissioner W. H. L. Woodyard, III. The appellee is Arkansas Diversified Insurance Company (ADIC). ADIC sought a certificate of authority from Woodyard to sell...
In 2003, then U.S. Secretary of Defense Donald Rumsfeld won Britain's Plain English Campaign 2003 Golden Bull Award for this statement: "Reports that say that something hasn't happened are always...
How do developmental genetic studies, such as gene expression profiling, lineage tracing, and functional genetic manipulations, provide insights into the developmental origins and evolutionary...
An access route is being constructed across a field (Figure Q8). Apart from a relatively firm strip of ground alongside the field's longer side AB, the ground is generally marshy. The route can...
Use Fishers Lemma to prove Theorem 12.2.2. jel i=1
A random sample of size n = 6 is taken from the pdf fY(y) = 3y2, 0 y 1. Find P(Y5 > 0.75).
Recovering small quantities of calcium in the presence of magnesium can be a difficult problem for an analytical chemist. Suppose the amount of calcium Y to be recovered is uniformly distributed...
Calculate: (a) $f=a /(b c)$, where $a=2.34\mathrm{~mm}^{2}, b=54.26\mathrm{~m}$, and $c=0.14\mu \mathrm{m}$; (b) $g=k t^{3}$, where $k=1.208\times 10^{-2}\mathrm{~s}^{-3}$ and...
Which of these is a hierarchical approach of subordination of individuals that work together and contribute to serve a common goal? Formal organization Informal structures Functional structure ...
A sound organization Prevents corruption Enhances creativity None of the above All of the above

The marks obtained by a number of students in a certain subject are assumed to be approximately

Question:

Expert Answer:

Answer The variance of the distribution is 9 ie the standard deviation is sqrt9 3 ... View the full answer

Introduction to Mathematical Statistics and Its Applications

Students also viewed these mathematics questions