A sewing basket contains eight reels of cotton: four are green, three are red and one is

Question:

A sewing basket contains eight reels of cotton: four are green, three are red and one is yellow. Three reels of cotton are randomly selected from the basket.

a. Show that the expected number of yellow cotton reels is 0.375.

b. Find the expected number of red cotton reels.

c. Hence, state the expected number of green cotton reels.

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

Show that the expected number of points on the convex hull of a set of n points chosen uniformly and independently at random in the interior of a rectangle, R, is O(log n).
Listed below are heights (cm) randomly selected from the sample of women and heights (cm) randomly selected from the sample of men (from Data Set 1 "Body Data" in Appendix B). Use a 95% confidence...
Fifteen countries were randomly selected from the World Factbook 2009 list of world countries, and the estimated infant mortality per 1000 live births rate was recorded. a. Find the first and third...
When a manager greets department visitors or attends ceremonies, he or she is playing the role of: Figurehead Conceptual Empowerment Productivity
Express the quantity 965.33 kcal in joules.
Accounting records for NIC Enterprises (NICE) for September show the following (each entry is the total of the actual entries for the account for the month): Note a: This entry does not include any...
This problem extends the Summary Problem 1 to a second department. During May, Florida Tile Industries reports the following in its Tile-Finishing Department: Requirements: 1. Complete the five-step...
Using the information from SE4 and the data that follow, compute the total cost per equivalent unit. In SE4, Pearl Glaze adds direct materials at the beginning of its production process and adds...
23.Radiation from hydrogen gas excited to first excited state is used for illuminating certain metallic plate. When the same plate is exposed to the radiation from some unknown hydrogen like gas...
The following unadjusted trial balance contains the accounts and balances of Dalton Delivery Company as of December 31, 2011, its first year of operations. (1) Use the following information about the...
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).
A fair 4-sided die, numbered 1, 2, 3 and 5, is rolled twice. The random variable X is the sum of the two numbers on which the die comes to rest. a. Show that P(X = 8) = 1/8. b. Draw up the...
Arrow Air is a regional East Coast airline. It has collected data for the percentage of available seats occupied on its flights for four quarters (1) JanuaryMarch (2) AprilJune (3) JulySeptember (4)...
What is the impact on taxes when the manager sells an asset at a loss? The manager at the Chesapeake Bay Crab House reported a current disposal value of an old fish processing machine at $8,200. The...
explain and also tell what is the difference of term insurance and ordinary insurance in this case.
Let f(x) = x - 5 and g(x) = x. Find the function f - g. (f g)(x) = Find the domain. (Enter your answer using interval notation.)
Describe the importance of business communication in the digital age? What are the barriers of effective business communication and how do you like to overcome those barriers using technology?
The managerial accountant at Fort Story Manufacturing plant reported an annual cash inflow from its investment in a capital asset of $30,000 each year for five years. The corporation's income tax...
Identify the ketones that are responsible for the mass spectra shown in Figure 13.9. 100 80 E 60 2 40 20 86 58 71 20 40 60 80 100 120 miz 100 29 86 20 40 60 80 100 120 miz
In Exercises 1558, find each product. (9 - 5x) 2
The variables x and y satisfy the differential equation that y = 2 when x = 1. Solve the differential equation and obtain an expression for y in terms of x in a form not involving logarithms. X dy =...
z = 5 + i3 is a root of a quadratic equation. Find this quadratic equation.
On a single Argand diagram, sketch the loci |z + 3 2i|= 4 and arg(z + 1)/4. Hence determine the value of z that satisfies both loci, giving your answer in Cartesian form.
(a) Convert the following C++ code from while-loop to for-loop, such that it gives the same output. [6 Marks] int i; while (true) { cin >> i; if (i == 7) break; cout < < i * i ; += 3; }
(10 points) A group of n dancers will be performing while while holding flags. It's optimal if each dancer is holding a flag as close as possible to their height. You have a collection of n flags of...
1. Write a C++ program that prompts the user to enter a file name that contains the scores of students in a quiz. Each line in the input file contains a student name followed by the student's score...

A sewing basket contains eight reels of cotton: four are green, three are red and one is

Question:

Step by Step Answer:

a The expected number of yellow cotton reels can be found by multiplying the probability of selectin...View the full answer

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

Students also viewed these Mathematics questions