Explanation Given info: The data shows the number of calories per serving for selected ready-to-eat cereals are listed. Calculation: The class boundaries for any class are given by: Upper class boundary = Upper class limit + 0.5 Lower class boundary = Lower class limit − 0.5 The grouped frequency distribution is as follows: Class limit Class boundaries Tally Frequency 80-108 79.5-108.5 | | | | | | | 8 109-137 108.5-137.5 | | | | | | | | | | | 13 138-166 137.5-166.5 ∥ 2 167-195 166.5-195.5 | | | | | | | | 9 196-224 195.5-224.5 | | | | | | | | 10 225-253 224.5-253.5 ∥ 2 254-282 253.5-282.5 ∥ 2 Class midpoint: The midpoint of class boundaries is obtained by adding lower and upper limit and dividing by 2. For the first class, X m = Lower boundary + Upper boundary 2 = 79.5 + 108.5 2 = 188 2 = 94 Thus, the midpoint for the first class is 94

Elementary Statistics: A Step By Step Approach

9th Edition

ISBN: 9780073534985

Author: Allan Bluman

Publisher: McGraw-Hill Science/Engineering/Math

See similar textbooks

Question

Chapter 2.2, Problem 17E

To determine

To Sketch: A histogram, frequency polygon and ogive using relative frequency and describe the shape of the histogram for the given data.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 2.2, Problem 16E

Chapter 2.2, Problem 18E

Students have asked these similar questions

Problem 3. Pricing a multi-stock option the Margrabe formula The purpose of this problem is to price a swap option in a 2-stock model, similarly as what we did in the example in the lectures. We consider a two-dimensional Brownian motion given by W₁ = (W(¹), W(2)) on a probability space (Q, F,P). Two stock prices are modeled by the following equations: dX = dY₁ = X₁ (rdt+ rdt+0₁dW!) (²)), Y₁ (rdt+dW+0zdW!"), with Xo xo and Yo =yo. This corresponds to the multi-stock model studied in class, but with notation (X+, Y₁) instead of (S(1), S(2)). Given the model above, the measure P is already the risk-neutral measure (Both stocks have rate of return r). We write σ = 0₁+0%. We consider a swap option, which gives you the right, at time T, to exchange one share of X for one share of Y. That is, the option has payoff F=(Yr-XT). (a) We first assume that r = 0 (for questions (a)-(f)). Write an explicit expression for the process Xt. Reminder before proceeding to question (b): Girsanov's theorem…

Problem 1. Multi-stock model We consider a 2-stock model similar to the one studied in class. Namely, we consider = S(1) S(2) = S(¹) exp (σ1B(1) + (M1 - 0/1 ) S(²) exp (02B(2) + (H₂- M2 where (B(¹) ) +20 and (B(2) ) +≥o are two Brownian motions, with t≥0 Cov (B(¹), B(2)) = p min{t, s}. " The purpose of this problem is to prove that there indeed exists a 2-dimensional Brownian motion (W+)+20 (W(1), W(2))+20 such that = S(1) S(2) = = S(¹) exp (011W(¹) + (μ₁ - 01/1) t) 롱) S(²) exp (021W (1) + 022W(2) + (112 - 03/01/12) t). where σ11, 21, 22 are constants to be determined (as functions of σ1, σ2, p). Hint: The constants will follow the formulas developed in the lectures. (a) To show existence of (Ŵ+), first write the expression for both W. (¹) and W (2) functions of (B(1), B(²)). as (b) Using the formulas obtained in (a), show that the process (WA) is actually a 2- dimensional standard Brownian motion (i.e. show that each component is normal, with mean 0, variance t, and that their…

The scores of 8 students on the midterm exam and final exam were as follows. Student Midterm Final Anderson 98 89 Bailey 88 74 Cruz 87 97 DeSana 85 79 Erickson 85 94 Francis 83 71 Gray 74 98 Harris 70 91 Find the value of the (Spearman's) rank correlation coefficient test statistic that would be used to test the claim of no correlation between midterm score and final exam score. Round your answer to 3 places after the decimal point, if necessary. Test statistic: rs =

Chapter 2 Solutions

Elementary Statistics: A Step By Step Approach

Ch. 2.1 - Ages of Presidents at Inauguration The data...Ch. 2.1 - List five reasons for organizing data into a...Ch. 2.1 - Name the three types of frequency distributions,...Ch. 2.1 - How many classes should frequency distributions...Ch. 2.1 - What are open-ended frequency distributions? Why...Ch. 2.1 - Prob. 5E Ch. 2.1 - For Exercises 58, find the class boundaries,...Ch. 2.1 - Prob. 7E Ch. 2.1 - For Exercises 58, find the class boundaries,...Ch. 2.1 - Prob. 9E

Knowledge Booster