Mathematics for Elementary Teachers with Activities (5th Edition)
5th Edition
ISBN: 9780134392790
Author: Beckmann, Sybilla
Publisher: PEARSON
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Chapter 11.2, Problem 6P
Suppose there are 2 rectangular pools: One is 30 feet wide, 60 feet long. and 5 feet deep throughout, and the other is 40 feet wide. 50 feet long, and 4 feet deep throughout. Show that each pool can be considered “biggest" by comparing the sizes of the pools in two meaningful ways other than by comparing one dimensional aspects of the pools.
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Match the surfaces (a) - (f) below with the contour diagrams (1) - (6) below those.
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At least one of the answers above is NOT correct.
The figure shows a hill with two paths, A and B.
(a) What is the elevation change along each path? 400
9400
✓ feet
(b) Which path ascends more rapidly? A v
(c) On which path will you probably have a better view of the surrounding
countryside (assuming that trees do not block your view)? A V
(d) Along which path is there more likely to be a stream?
A V
Note: You can earn 50% partial credit for 2-3 correct answers.
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4)
28. (a) Under what conditions do we say that two random variables X and Y are
independent?
(b) Demonstrate that if X and Y are independent, then it follows that E(XY) =
E(X)E(Y);
(e) Show by a counter example that the converse of (ii) is not necessarily true.
Chapter 11 Solutions
Mathematics for Elementary Teachers with Activities (5th Edition)
Ch. 11.1 - For each of the following metric units, give...Ch. 11.1 - For each of the following items, state which U.S....Ch. 11.1 - What does it mean to say that a shape has an area...Ch. 11.1 - Discuss why it is easy to give an incorrect...Ch. 11.1 - Discuss: Why is it not completely correct to...Ch. 11.1 - Describe how it could happen that three different...Ch. 11.1 - Pick two ideas or concepts from your reading of...Ch. 11.1 - Visit a store and write down at least 10 different...Ch. 11.2 - Describe one-dimensional, two-dimensional, and...Ch. 11.2 - Describe one-dimensional, two-dimensional, and...
Ch. 11.2 - Drawing on your reading from this section,...Ch. 11.2 - Describe one-dlmenslonal, two-dlmenslonal, and...Ch. 11.2 - The Lazy Daze Pool Club and the Slumber-N-Sunshine...Ch. 11.2 - Suppose there are 2 rectangular pools: One is 30...Ch. 11.2 - Minh says that the rectangle on the left in Flgure...Ch. 11.3 - One source says that the average distance from the...Ch. 11.3 - If an object is described as weighing 6.20 grams,...Ch. 11.3 - Tyra ls calculating the distance from town A to...Ch. 11.3 - John has a paper square that he believes is 100 cm...Ch. 11.3 - Sally has a Plexiglas cube that she believes is...Ch. 11.4 - A recipe calls tor 4 ounces ot chocolate. If you...Ch. 11.4 - A class needs 27 pieces of ribbon, each piece 2...Ch. 11.4 - To convert 24 yards to feet, should you multiply...Ch. 11.4 - To convert 2000 kilometers to meters, should you...Ch. 11.4 - Shauntay used identical plastic bears to measure...Ch. 11.4 - A car is 16 feet, 3 inches long. How long is it in...Ch. 11.4 - The distance between two cities is described as...Ch. 11.4 - In Germany, people often drive 130 kilometers per...Ch. 11.4 - One foot is 12 inches. Does this mean that 1...Ch. 11.4 - A room has a floor area of 48 square yards. What...Ch. 11.4 - One kilometer is 1000 meters. Does this mean that...Ch. 11.4 - One foot is 12 inches. Does this mean that 1 cubic...Ch. 11.4 - How much mulch will you need to cover a...Ch. 11.4 - A classroom has a floor area of 600 square feet....Ch. 11.4 - A house has a floor area of 800 square meters....Ch. 11.4 - A house has a floor area of 250 square meters....Ch. 11.4 - The Smiths will be carpeting a room in their...Ch. 11.4 - One acre is 43,560 square feet. If a square piece...Ch. 11.4 - A construction company has dump trucks that hold...Ch. 11.4 - The following questlon explores why It doesn’t...Ch. 11.4 - A penny is 116 of an inch thick. Suppose you have...Ch. 11.4 - Write 100 zeros on a piece of paper and time how...Ch. 11.4 - For a certain type of rice, about 50 grains till a...Ch. 11.4 - Assuming that 1 gram of gold is worth $30 how much...Ch. 11.4 - Imagine that all the people on earth could stand...Ch. 11.4 - Joey has a toy car that is a 1: 64 scale model of...
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