School children were surveyed regarding their favorite foods. Of the total sample, 20% were 1st graders,...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
School children were surveyed regarding their favorite foods. Of the total sample, 20% were 1st graders, 20% were 6th graders, and 60% were 11th graders. For each grade, the following table shows the proportion of respondents that chose each of three foods as their favorite: 1st graders 6th graders 11th graders Ice cream 0.3 0.6 0.3 Fruit 0.6 0.3 0.1 French fries 0.1 0.1 0.6 (1) From that information, construct a table of joint probabilities of grade and favorite food. (2) Also, say whether grade and favorite food are independent or not, and how you ascertained the answer. Hint: You are given p(grade) and p(food grade). You need to determine p(grade,food) School children were surveyed regarding their favorite foods. Of the total sample, 20% were 1st graders, 20% were 6th graders, and 60% were 11th graders. For each grade, the following table shows the proportion of respondents that chose each of three foods as their favorite: 1st graders 6th graders 11th graders Ice cream 0.3 0.6 0.3 Fruit 0.6 0.3 0.1 French fries 0.1 0.1 0.6 (1) From that information, construct a table of joint probabilities of grade and favorite food. (2) Also, say whether grade and favorite food are independent or not, and how you ascertained the answer. Hint: You are given p(grade) and p(food grade). You need to determine p(grade,food)
Expert Answer:
Related Book For
Discovering Advanced Algebra An Investigative Approach
ISBN: 978-1559539845
1st edition
Authors: Jerald Murdock, Ellen Kamischke, Eric Kamischke
Posted Date:
Students also viewed these accounting questions
-
You are planning to open an ice cream parlor. You want to have a wide variety of flavors for your patrons to select from, so you are going to ask potential customers to identify their favorite...
-
Favorite Foods Corp. sold its food to stores and distributors. It established a quantity discount scale that was publicly published and made available to all buyers. The top of the scale gave the...
-
A local ice cream parlor wants to determine whether the temperature has an effect on its business. The following table contains data on the temperature at 7PM on 10 rain-free weekend days during the...
-
DFI of real sequences with odd harmonics only Let x(n) be an N -point real sequence with N-point DFT X(k) (N even). In addition, x(n) satisfied the following symmetry property: x(n + N/2) = -x(n) n =...
-
As a hobby, Jane creates and sells oil paintings. During the current year, her sales total $8,000. How is the tax treatment of her hobby different from the treatment of a trade or business, if a. Her...
-
Refer to Exercise 9.17. Conduct a two-sample t-test (Section 8.2) of the null hypothesis that the two treatment means are equal for each dot plot. Use a = .05 and two tailed tests. In the course of...
-
The adjusting entries for the following adjustments were omitted at year-end: a. Prepaid rent expired, $2,500. b. Depreciation, $1,000. c. Employee salaries owed for Monday through Wednesday of a...
-
Refer to the information in Exercise 10-4. Prepare a table showing depreciation and book value for each of the four years assuming double-declining-balance depreciation.
-
Maggie s Skunk Removal Corporation s income statement listed net sales of $ 1 3 . 5 million, gross profit of $ 9 . 1 0 million, EBIT of $ 6 . 6 million, net income available to common stockholders of...
-
Forecasting the Pan-Pacific Pyramid: Australia, Japan & The United States What are the current spot exchange rate for the following cross rates? a. Japaness Yen/Us dollar exchange rate b. Japanese...
-
Suppose you are attempting to estimate the model Qit = Bo + B Advertising it + ai + Eit to identify the effectiveness of marketing practices of firms, where Qit denotes units sold of one product in...
-
Which method reference can replace the lambda on the first line so the output is the same? BiPredicate pred = (a,b) -> a.contains(b); System.out.println(pred.test("fish", "is")); A. a::contains(b)...
-
Which statements about the findAny() method applied to a stream are correct? (Choose three.). A. It always returns the first element on an ordered serial stream. B. It may return any element on an...
-
Why cant String::charAt be used as a method reference within a Function? A. Method references can only be used on static methods. B. The charAt() method takes an int rather than Integer parameter. C....
-
What is the expected output of the following code snippet? A. It does not compile. B. It throws an exception at runtime. C. It does not print any output at runtime. D. It prints four numbers twice...
-
Given an IntStream, which method would you use to obtain an equivalent parallel Stream ? A. parallel() B. parallelStream() C. parallels() D. getParallel() E. getParallelStream() F. None of the above
-
Prompt: Keys to Strategic Execution : In the Strategic Management process, Strategic Analysis comes before Strategic Formulation and Strategic Formulation (or design) comes before Strategic...
-
Whats the difference between an ordinary annuity and an annuity due? What type of annuity is shown below? How would you change the time line to show the other type of annuity?
-
The International Canine Academy raises and trains Siberian sled dogs and dancing French poodles. Breeders can supply the academy with at most 20 poodles and 15 Siberian huskies each year. Each...
-
Russell collected data similar to Karina's at Powder Hill Resort. He found that 86% of the skiers planned to ski the next day and 92% of the snowboarders planned to snowboard the next day. a. Draw a...
-
Consider the number of heads, x, when 15 fair coins are all tossed at once. a. Use binomial expansion to find the probability distribution for P(x). Then calculate the theoretical results for 500...
-
A sample of convenience is never acceptable. In Exercises 1316, determine whether the statement is true or false. If the statement is false, rewrite it as a true statement.
-
A police department conducted a survey in which police officers interviewed members of their community to ask their opinions on the effectiveness of the police department. The police chief reported...
-
Observational studies are generally more reliable than randomized experiments. In Exercises 1116, determine whether the statement is true or false. If the statement is false, rewrite it as a true...
Study smarter with the SolutionInn App