1. In a high school class of 100 students, 42 studied mathematics, 68 studied psychology, 54...
1. In a high school class of 100 students, 42 studied mathematics, 68 studied psychology, 54 studied history, 22 studied both mathematics and history, 25 studied both mathematics and psychology, 7 studied history but niether mathematics nor pychology, 10 studied all three subjects, and 8 took none of these. Randomly selecting a student from the class, what is the probability of the following event that: (a) a person enrolled in psychology takes all three subjects. (b) a person not taking psychology is taking both history and mathematics. 2. Suppose S = {1, 2, 3, 4, 5, 6}. Let E = {3, 5}, F = {1, 4, 5}, and G = {1, 2}. Compute the following sets and write
in set notation (as done for S, E, F, and G). Note that AB is regarded as A ∩ B. (a) EF G0 (b) E ∪ (F ∩ G) (c) (E ∪ F) ∩ (E ∪ G) (d) E(F ∪ G) (e) (EF) ∪ (EG) (f) (EF0 ) ∪ G (g) E(F 0 ∪ G)
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1. In a high school class of 100 students, 42 studied
mathematics, 68 studied psychology, 54...
In the senior year of a high school graduating class of 80 students, 34 studied mathematics,...
In the senior year of a high school graduating class of 80 students, 34 studied mathematics, 58 studied psychology, 44 studied history, 16 studied both mathematics and history, 23 studied both mathematics and psychology, 7 studied history but neither mathematics nor psychology, 8 studied all three subjects, and 4 did not take any of the three. If a student who studied mathematics is selected, what is the probability that the student has also studied psychology? [The answer should be a...
1 5.) In a high school graduating class of 100 students. 54 studied mathematics. 69 studied...
1 5.) In a high school graduating class of 100 students. 54 studied mathematics. 69 studied history. and 35 studied both mathematies and history. If one of these students is selected at random, find the prob- ability that (a) the student takes mathematics or history b) the student does not take either of these sub- jeets: c) the student takes history but not mathematics.
In a high school graduating class of 100 students, 54 studied mathematics, 69 studied history, and...
In a high school graduating class of 100 students, 54 studied mathematics, 69 studied history, and 35 studied both mathematics and history. If one of these students is selected at random, find the probability that (a) the student took mathematics or history; (b) the student did not take either of these subjects; (c) the student took history but not mathematics. . . . The probability that a married man watches a certain television show is 0.4, and the probability that...
WITH CLEAR HANDWRITTING PLEASE Illustrate the given operations using the Venn diagrarm 1. Ain (ВПС) How...
WITH CLEAR HANDWRITTING PLEASE
Illustrate the given operations using the Venn diagrarm 1. Ain (ВПС) How many students were enrolled in 1. exactily one subject 2. at most one subject 3. at least one subject 4. Algebra or Physics 5. Algebra and Physics but not Chemistry 2. (AUB)'nc Give the set implied by each of the following with H-(a, b, c, d, e,f,g). 1. [a, b)u [lc, d, b)n (b, d)] Problem solving using Venn diagrams. In a certain class...
I. At a certain school, 60% of the students wear neither a ring nor a necklace,...
I. At a certain school, 60% of the students wear neither a ring nor a necklace, 20% wear a ring, 30% wear a necklace. Compute the probability that a randomly selected student wears (a) a ring or a necklace; (b) a ring and a necklace 2. A school offers three language classes: Spanish (S), French (F), and German (G). There are 100 students total, of which 28 take S. 26 take F, 16 take G, 12 take both S and...
Suppose SAT score and high school graduating class size (hsize, scaled in terms of 100 students)...
Suppose SAT score and high school graduating class size (hsize, scaled in terms of 100 students) are correlated and the unobserved factors denoted by u. Then SAT = B + Bhsize+u. ss df - • reg sat hsize Source Model 324242.826 Residual 1 80049603.5 Total 1 80373846.3 1 4.135 MS 324242.826 19359.0335 19432.7481 Number of obs F(1, 4135) Prob > F R-squared Adj R-squared Root MSE 4.137 16.75 0.0000 4,136 0.0038 139.14 sat hsize _cons Coef. 5.098593 1016.056 Std. Err....
1. A mathematics professor believes that the performance of students taking an elementary calculus course has declined in recent years. The professor decides to reuse a final exam that was first admin...
1. A mathematics professor believes that the performance of students taking an elementary calculus course has declined in recent years. The professor decides to reuse a final exam that was first administered 10 years ago. At that time the mean score was 81 with s=10, for the 50 students in the section taught by that professor When given to the current class of 53 students, who observed essentially the same set of lectures, the mean is 75 with s=15. If...
Selecting appropriate assessment techniques l: high quality assessments For an assessment to be h...
5-7
sentences initial thoughts
Selecting appropriate assessment techniques l: high quality assessments For an assessment to be high quality it needs to have good validity and reliability as well as absence from bias. Validity Validity is the evaluation of the “adequacy and appropriateness of the interpretations and uses of assessment results for a given group of individuals (Linn & Miller, 2005, p.68). For example is it appropriate to conclude that the results of a mathematics test on fractions given to...
COMPUTER NETWORKS: 1. An organization with a Class B IP address of 128.25.0.0/16 wants eight subnets...
COMPUTER NETWORKS: 1. An organization with a Class B IP address of 128.25.0.0/16 wants eight subnets in its network. There are some legacy routers. Hence, they do not want to use zero and all-ones subnets. a. How many bits are used in each of the following three fields? netID: ______________ subnetID: __________ hostID: _________________ b. Determine the subnet mask that needs to be set in the hosts in dotted decimal notation. Subnet Mask in dotted decimal notation: ¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬_______________________________________ c. ...
Industrial and Organizational Psychology questions
Industrial-organizational psychologists are interested in all of the following except1. how to best diagnose clinical disorders and offer therapy to employees.2. how personality characteristics influence work behavior.3. how culture influences people's perceptions of their working environments.4. how people's work affects their home life.An organizational psychologist would be most likely concerned with1. studying the interaction between humans and technology.2. All of the these3. interviewing potential employees.4. helping people organize their schedules and daily planners.5. understanding the emotional and motivational side of...
In the senior year of a high school graduating class of 80 students, 34 studied mathematics, 58 studied psychology, 44 studied history, 16 studied both mathematics and history, 23 studied both mathematics and psychology, 7 studied history but neither mathematics nor psychology, 8 studied all three subjects, and 4 did not take any of the three. If a student who studied mathematics is selected, what is the probability that the student has also studied psychology? [The answer should be a...
1 5.) In a high school graduating class of 100 students. 54 studied mathematics. 69 studied history. and 35 studied both mathematies and history. If one of these students is selected at random, find the prob- ability that (a) the student takes mathematics or history b) the student does not take either of these sub- jeets: c) the student takes history but not mathematics.
In a high school graduating class of 100 students, 54 studied mathematics, 69 studied history, and 35 studied both mathematics and history. If one of these students is selected at random, find the probability that (a) the student took mathematics or history; (b) the student did not take either of these subjects; (c) the student took history but not mathematics. . . . The probability that a married man watches a certain television show is 0.4, and the probability that...
WITH CLEAR HANDWRITTING PLEASE
Illustrate the given operations using the Venn diagrarm 1. Ain (ВПС) How many students were enrolled in 1. exactily one subject 2. at most one subject 3. at least one subject 4. Algebra or Physics 5. Algebra and Physics but not Chemistry 2. (AUB)'nc Give the set implied by each of the following with H-(a, b, c, d, e,f,g). 1. [a, b)u [lc, d, b)n (b, d)] Problem solving using Venn diagrams. In a certain class...
I. At a certain school, 60% of the students wear neither a ring nor a necklace, 20% wear a ring, 30% wear a necklace. Compute the probability that a randomly selected student wears (a) a ring or a necklace; (b) a ring and a necklace 2. A school offers three language classes: Spanish (S), French (F), and German (G). There are 100 students total, of which 28 take S. 26 take F, 16 take G, 12 take both S and...
Suppose SAT score and high school graduating class size (hsize, scaled in terms of 100 students) are correlated and the unobserved factors denoted by u. Then SAT = B + Bhsize+u. ss df - • reg sat hsize Source Model 324242.826 Residual 1 80049603.5 Total 1 80373846.3 1 4.135 MS 324242.826 19359.0335 19432.7481 Number of obs F(1, 4135) Prob > F R-squared Adj R-squared Root MSE 4.137 16.75 0.0000 4,136 0.0038 139.14 sat hsize _cons Coef. 5.098593 1016.056 Std. Err....
5-7
sentences initial thoughts
Selecting appropriate assessment techniques l: high quality assessments For an assessment to be high quality it needs to have good validity and reliability as well as absence from bias. Validity Validity is the evaluation of the “adequacy and appropriateness of the interpretations and uses of assessment results for a given group of individuals (Linn & Miller, 2005, p.68). For example is it appropriate to conclude that the results of a mathematics test on fractions given to...
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