1. The mathematics test results of 40 learners were examined and the results were recorded in thefollowing two-way table:ClassPassedFailedTotalA11617B1523Total261440If a learner is chosen at random from the group, determine the following:a. P (the learner passed).b. P (learner is from class B and passed)C. P (learner is from class A and failed)

Answered: Image /qna-images/answer/0688d9f5-ca5a-4867-89cb-f1089cce06f0.jpg

Answered: 1. The mathematics test results of 40…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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In a study with 5 groups, 6 samples each group, what are the degrees of freedom for the total, group, and error, respectively? a. 29, 5, 25 b. 29, 25, 4 c. 29, 5, 24 d. 29, 4, 25
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A manufacturing company that produces laminate for countertops is interested in studying the relationship between the number of hours of training that an employee receives and the number of defects per countertop produced. Ten employees are randomly selected. The number of hours of training each employee has received is recorded and the number of defects on the most recent countertop produced is determined. The results are as follows. Hours of Training Defects per Countertop 1 5 4 1 7 0 3 3 2 5 2 4 5 1 5 2 1 8 6 2 Copy Data The estimated regression line and the standard error are given. Defects per Countertop=6.717822−1.004950(Hours of Training)se=1.229787se=1.229787 Suppose a new employee has had 5 hours of training. What would be the 90% prediction interval for the number of defects per countertop? Round your answer to two decimal places.
When making an ice cream sundae, you have a choice of 33 types of ice cream flavors: chocolate (C), vanilla (V), or Moose Tracks (M); a choice of 22 types of sauces: hot fudge (H) or butterscotch (B); and a choice of 22 types of toppings: whipped cream (W) or fruit (F). If you are choosing only one of each, list the sample space in regard to the sundaes (combinations of ice cream flavors, sauces, and toppings) you could pick from. Separate the elements of the sample space with commas.
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The following are the cores of 23 students in a 50-item test. 26 28 32 45 38 47 36 35 30 40 29 50 43 33 48 32 41 35 37 38 36 42 38 Find each of the following: 1. Q3 2. IQR 3. D2 4. D5 5. Dg 6. D9 7. P28 8. P85 9. P5 10. P98
Magazine Ads. Advertising researchers F. Shuptrine and D. McVicker wanted to determine whether there were significant differences in the readability of magazine advertisements. Thirty magazines were classified based on their educational level—high, mid, or low—and then three magazines were randomly selected from each level. From each magazine, six advertisements were randomly chosen and examined for readability. In this particular case, readability was characterized by the numbers of words, sentences, and words of three syllables or more in each ad. The researchers published their findings in the paper “Readability Levels of Magazine Ads” (Journal of Advertising Research, Vol. 21, No. 5, pp. 45–51). The number of words of three syllables or more in each ad are provided on the WeissStats site. a. Obtain individual normal probability plots and the standard deviations of the samples. b. Perform a residual analysis. c. Use your results from parts (a) and (b) to decide whether conducting a…
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