5. A representative sample of 50 students from a high school is surveyed. Each student is asked what science class he or she is taking. Science Class No. of Students Physics Chemistry Biology 6. 10 18 Earth Science 4 Health Sciences 12 Select all of the statements that are valid based on the survey results. a. About 20% of students at the high school are taking Chemistry. b. About twice as many students are taking Health Science than are taking Physics. c. For every 150 students we could predict that at least 18 of the students are taking Physics d. For every 25 students we could predict that at least 4 of the students are taking Earth Science.

5. A representative sample of 50 students from a high school is surveyed. Each student is asked what science class he or she is taking. Science Class No. of Students Physics Chemistry Biology 6. 10 18 Earth Science 4 Health Sciences 12 Select all of the statements that are valid based on the survey results. a. About 20% of students at the high school are taking Chemistry. b. About twice as many students are taking Health Science than are taking Physics. c. For every 150 students we could predict that at least 18 of the students are taking Physics d. For every 25 students we could predict that at least 4 of the students are taking Earth Science.

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

See similar textbooks

Similar questions

6
5
What conclusions do you reach from this chart? A. There is an approximately equal percentage of males and females who enjoy shopping for clothing. B. There is a higher percentage of males who enjoy shopping for clothing. C. There is a higher percentage of females who enjoy shopping for clothing. D. The side-by-side bar chart is inconclusive. O A. Yes- No- 0. 100 200 300 400 Frequency Male C Female
1 V. A randomly selected sample of 1000 college students was asked whether they had ever used the drug STC sixteen percent (16%) of the 1000 students survived said they had. which one of the following statements about the number (0.16) is correct: A. It is a sample proportion. B. it is a population proportion. C.it is a margin of error. D. it is a randomly chosen number
Q. 2 Describe Sign test for one sample. one
26
Twenty students in a group of 40 at Dawn High elect for a course in statistics (St. Eleven students take up linear algebra (L). Five students enrolled for both courses. Represent the data in the Venn diagram below.
From a Population consisting of following values of 2,2,4,4 and 8, how many samples of size two can be drawn ? Select one: a.12 b.10 c.13 d.9 e.11
A beauty products brand launched a new shower gel and distributed samples to 148 prospective customers for review. 86 of them said they were satisfied with the product, 50 of whom were males and 30 customers including 5 females were unsatisfied, the rest were unsure. If the sample included 61 females. Answer the following. 1. Fill in the following table Review Gender Un-Satisfied Unsure Satisfied Male Female 2. What proportion of the customers were unsure females? 3. How many male unsatisfied customers were there 4. What proportion of women were satisfied with the product? 5. What proportion of the customers were unsure about the product?
23. Andrews Middle School has gathered data for their students' transportation to and from school. Method of Transportation Female Male Bus 94 102 Car 38 32 Walk 40 44 What is the frequency of students, in total, who ride a bus to and from school? O The frequency of students who ride the bus cannot be determined using the data in the table. 196 students 94 0.92(100) = 92%of students 102 102 students
Let x be the percentage of 16- to 19-year-olds not in school and not high school graduates. Let y be the reported violent crimes per 1000 residents. Six small cities in Arkansas (Blytheville, El Dorado, Hot Springs, Jonesboro, Rogers, and Russellville) reported the following information about x and y. x 24.2 18.6 17.8 14.9 19.0 17.5 y 13.0 4.6 8.8 1.3 0.8 3.6 Complete parts (a) through (e), given Σx = 112, Σy = 32.1, Σx2 = 2137.7, Σy2 = 282.89, Σxy = 654.37, and r ≈ 0.763. (b) Verify the given sums Σx, Σy, Σx2, Σy2, Σxy, and the value of the sample correlation coefficient r. (Round your value for r to three decimal places.) Σx = Σy = Σx2 = Σy2 = Σxy = r = (c) Find x, and y. Then find the equation of the least-squares line = a + bx. (Round your answers for x and y to two decimal places. Round your answers for a and b to three decimal places.) x = y = = + x