There are eight letters in a post box, and five of them are addressed to Mr Nut.

Question:

There are eight letters in a post box, and five of them are addressed to Mr Nut. Mr Nut removes four letters at random from the box.

a. Find the probability that none of the selected letters are addressed to Mr Nut.

b. Draw up the probability distribution table for N, the number of selected letters that are addressed to Mr Nut.

c. Describe one significant feature of a vertical line graph or bar chart that could be used to represent the probability distribution for N.

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

Step by Step Answer:

Related Book For book-img-for-question

Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

ISBN: 9781108407304

1st Edition

Authors: Dean Chalmers, Julian Gilbey

See More Books

Question Posted: Sep 13, 2021 03:07 AM

See More Questions

A number is chosen at random from the integers 1, 2, 3, . . . , n. Let X be the number chosen. Show that E(X) = (n+1)/2 and V (X) = (n−1)(n+1)/12. Hint: The following identity may be useful: 12...
A number is chosen at random from the integers 1, 2, 3, . . . , n. Let X be the number chosen. Show that E(X) = (n+1)/2 and V (X) = (n−1)(n+1)/12. Hint: The following identity may be useful:...
A name is drawn at random from the 96 entrants in a golf tournament. The person whose name is selected draws a ball from a bag containing four balls, one of which is embossed with the Peggos Company...
When component Auditors are involved in the audit of group financial statements the group Auditors are required to a. consider the independence and professional reputation of the component Auditors...
What is the heat when 0.444 g of Au increases temperature from 17.8(C to 222.5(C? The heat capacity of Au is in Table 7.1.
Fill in the missing items for the followinginventories: Beginning balance $30,000 $260,000 Transferred in Transferred out. 18,000 110,000 27,000 920,000
How is the sales volume in dollars necessary to reach a target profit calculated? a. target profit unit contribution margin b. target profit contribution margin ratio c. (fixed expenses + target...
Medway Printers (MP) manufactures printers. Assume that MP recently paid $900,000 for a patent on a new laser printer. Although it gives legal protection for 20 years, the patent is expected to...
15.A ray of light is incident on a slab as shown in figure. The refractive index of medium of slab changes as =1+ y. The angle made by ray with x-axis at y = 2 is 30 0 air 2
An enterprise, whether it sells things or information, consists of four essential elements: 1) production; 2) marketing; 3) human resources, 4) finance. Write an essay that explains what each of the...
A company offers a $1000 cash loan to anyone earning a monthly salary of at least $2000. To secure the loan, the borrower signs a contract with a promise to repay the $1000 plus a fixed fee before 3...
The discrete random variable Y is such that Y {4, 5, 8,14,17} and P(Y = y) is directly proportional to 1/y + 1. Find P(Y > 4).
This is a classic case dealing with freedom of expression. The City of Peterborough had passed a bylaw prohibiting the posting of any material on city property. The bylaw prohibited the posting of...
The costs of not adequately funding indigent defense include: Question 1 options: a) Retrials b) Lawsuits c) Lack of public faith in the justice system d) All of the above
Accounting is often referred to as "the language of business." Why is accounting described this way? How is accounting different from bookkeeping? Explain briefly
Find an organization's social media policy online and critique the policy. What works effectively? What could be improved on the policy? Then, think about creating a policy if you were managing an...
Substitute the value for the probability PN given by equation (11.8), in the Boltzmann expression for the entropy, namely S=-kP., log PN.1 N to show that for the grand canonical ensemble...
How business communication differs from informal or personal communication(2)consideration for intercultural communication in business environment(3)how ethics applies to business communication,?
Two products are obtained from the reaction of (Z)-2-pentene with water and a trace of H2SO4. The mass spectra of these products are shown in Figure 13.10. Identify the compounds responsible for the...
Write the expression in radical notation. Then evaluate the expression when the result is an integer. 23 -1/2
The variables x and y are related by the differential equation It is given that y = 2 when x = 0. Solve the differential equation and hence find the value of y when x = 0.5, giving your answer...
Given that y = 1 when x = 0, solve the differential equation obtaining an expression for y in terms of x. dy dx 4x(3y +10y + 3),
With respect to the origin O, the position vectors of the points A, B,C and D are given by a. In the case where ABC is a right angle, find the possible values of the constant m. b. In the case where...
What is encoded into the act of riding in traditional African sculpture?
A 1524 mm (5 5 ft) reinforced concrete box culvert with 254 mm (10 in.) sidewalls is installed with its top 914 mm (3 ft) above the adjacent natural ground level. What is the projection ratio for...
1. (3 Marks) You are given the following C program: #include #include #include int main(void) { int var 80; pid t pidA-1, pidB= -1; printf("before fork "); if ((pidA = fork()) < 0) { printf("fork...

There are eight letters in a post box, and five of them are addressed to Mr Nut.

Question:

Step by Step Answer:

a There are 3 letters in the box that are not addressed to Mr Nut The probability of selecting one o...View the full answer

Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

Students also viewed these Mathematics questions