Answers by Bob Brown
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Answers by Bob Brown

Answers by Bob Brown
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4.9 (Confusion matrix) In a classification problem with K classes, the cost matrix is K×K matrix C=[c ij ] in which c ij is the cost when one example belongs to class i but is predicted to be in class
answered Nov 28, 2024
4 votes
10.2k views
In the vibrating strings experiment, what is the wave speed in m/s for a string with = 0.00539 grams/cm if the mass suspended from the end of the string is m = 55.8 grams? assume g=9.80 m/s²
answered Jul 14, 2024
1 vote
150k views
How much pure alcohol must a pharmacist add to 10^3 of a 10% alchohol solution to strengthen it to a 70% solution? (ASAP)
answered Jul 7, 2024
3 votes
140k views
Essay prompt: In a five-paragraph literary analysis essay, explain how each author develops the common theme of American Identity. Compare and contrast how the authors develop this theme by referencing
answered Jun 14, 2024
3 votes
158k views
The date the auditor grants the client permission to use the audit report in connection with the financial statements is the: 1) Last day of significant field work. 2) Report cutoff date. 3) Report release
answered Jun 8, 2024
4 votes
187k views
For his weather project, Ronny will record whether or not it rains each day during a one-month period. Ronny plans to display the results of his study on a bar graph. Which is the most appropriate label
answered Mar 3, 2024
0 votes
30.9k views
Can someone please help me find the value of X?
answered Aug 26, 2023
2 votes
189k views
A water wave has a frequency of 0.9 Hz and a wavelength of 3 meters. What is the period of the wave in seconds?
answered Jul 22, 2023
9 votes
68.6k views
A hot air balloon travles 18 miles in 3 hours. at this rate, how many miles will the hot air balloon travel in 3/4 hour
answered Jul 12, 2023
9 votes
40.8k views
Prove or disprove that the product of a nonzero rational number and an irrational number is irrational.
answered Jun 8, 2023
1 vote
81.0k views
A study with London taxi cab drivers found that the hippocampus of their brains had greater volume, which was presumed to mean more neural connections, as a result of learning and driving new routes around
answered May 23, 2023
2 votes
69.4k views
Can anyone help me with this I’m stuck and this is pretty difficult.
answered May 10, 2023
1 vote
76.6k views
Q4. A chemical is soluble in water but insoluble in benzene. As a consequence, benzene may be used to determine its density. The density of benzene is 0.879/g/L. Calculate the density of the sample. (a)
answered May 7, 2023
6 votes
166k views
Which quote from the Bill of Rights prevents the national government from taking power for itself from the states and the people? A) "The powers not delegated to the United States by the Constitution,
answered Nov 6, 2022
4 votes
28.3k views
Who is going to win? Godzilla or King Kong for the movie that is coming out soon?
answered Oct 19, 2022
6 votes
146k views
Damaris owns a small business and is hiring a staff of employees. Each full-time employee will be paid a yearly salary of $32,000. Each part-time employee will be paid a yearly salary of $15,000. Damaris
answered Sep 16, 2022
10 votes
212k views
Question 2 of 11 Which word best completes the analogy? practice : success as crime: A. theft B. obedience C. law D. punishment
answered Sep 9, 2022
3 votes
105k views
Paraphrase “sonnet 30”. Describe the speaker’s thoughts in your own words.
answered Sep 1, 2022
7 votes
128k views
Which represents the inverse of the function f(x) = 4x? • h(x) = x + 4 • h(x) = x-4 •h(x) = 3/4x •h(x) = 1/4x
answered Jun 17, 2022
3 votes
191k views
Describe the plot twist in Act 3 scene 2 of Hamlet
answered Apr 23, 2022
11 votes
127k views
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