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Name is the unique candidate key in the table STUDENTC. Each row in the table describes a different student. A student may only have one major and one minor. To each major corresponds a unique minor. Time 37 Mi STUDENTC NAME GREEN HONEY LAMPOC TAKKER YONAR AGE 26 18 33 45 28 MAJOR | MATH INFO MKTG MKTG INFO MINOR INFO MATH MGT MGT ΜΑΤΗ The table STUDENTC contains many more rows than shown. It is replaced by the following...
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Examine the determinants of the functional dependencies. If any
determinant is not a candidate key, the relation is not well
formed. In this case: a. Place the columns of the functional
dependency in a new relation of their own. b. Make the determinant
of the functional dependency the primary key of the new relation.
c. Leave a copy of the determinant as a foreign key in the original
relation. d. Create a referential integrity constraint between the
original relation and...
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The employee is table, the best candidate for primary key
is
Select one:
a. Department ID
b. Employee hiredate
c. Employee ID
d. Employee salary
Question 2
A primary key can be composed of more than one attribute.
Select one:
True
False
Question 3
A foreign key allows you to join two tables.
Select one:
True
False
Question 4
Given two tables, department (dept_id, dept_location, dept_name)
and EMPLOYEE(emp_id, emp_name, emp_dept_id, emp_name, emp_salary),
which attribute (column) is the foreign key?
Select...
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1. Given the table above, write an SQL Query that will select
only those individuals that scored 800 or higher, sorted by last
name in ascending order.
2. Given the table above, write an SQL Query that will add a new
entry for John Smith with a score of 834. The field id is auto
incrementing.
3. Given the data below, write an SQL Query that will delete any
values where the score is below 740.
id Fname Lname Score...
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Question 1. For each table, identify the primary key and the
foreign key(s). If a table does not have a foreign key, write
None.
Question 2. Do the tables exhibit entity integrity? Answer yes
or no, and then explain your answer.
Question 3. Do the tables exhibit referential integrity? Answer
yes or no, and then explain your answer. Write NA (Not Applicable)
if the table does not have a foreign key.
Question 4. Describe the type(s) of relationship(s) between
CUSTOMER...
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c. 3.60 m above the floor d. at any of these positions, depending on whether the miror is below or above their eyes. e. none of these. 8. The ray aspect of light is based upon light traveling ir a. at a large, but finite velocity b) in straight lines through uniform media through the center of a thin lens on a path without any deviation. d. d. all of these. e none of these. In air, a glass lens...
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Based on the test set above, calculate the precision rate.
Based on the test set above, calculate the recall rate.
calculate the F1 measure.
calculate the misclassification rate.
1-4. The table below shows the predictions made for a categorical target feature by a model for a test dataset. ID Target Prediction ID Target Prediction ID Target Prediction 8 true 1 false false 15 false false true 2 false 9 false false 16 false false false 3 false false 10 false...
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production_time.txt is provided below which contains the data
for the problem set above.
Time
Size
14.28
15
8.80
9
12.49
7
9.38
4
10.89
9
15.39
21
13.09
11
12.35
6
10.66
10
8.12
7
12.61
12
8.61
2
10.99
6
8.65
5
11.52
10
7.25
3
2.63
3
9.61
4
20.20
20
19.68
17
13.46
13
18.45
30
18.05
21
9.76
4
18.27
15
14.38
17
13.27
13
11.40
10
12.32
7
19.06
23
10.66
7
13.88
16
2.53...
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Use Table 8.1, a computer, or a calculator to answer the following. Suppose a candidate for public office is favored by only 47% of the voters. If a sample survey randomly selects 2,500 voters, the percentage in the sample who favor the candidate can be thought of as a measurement from a normal curve with a mean of 47% and a standard deviation of 1%. Based on this information, how often (as a %) would such a survey show that...
-
Using Python, Can someone please assist in the following:
These are the hints:
Summary This week's lab is to create a simple multiplication table using nested loops and if statements. Prompt the user for the size of the multiplication table (from 2x2 to 10x10). Use a validation loop to display a warning if the number is less than 2 or greater than 10 and prompt the user to enter the data again until they enter a valid number Put a...
Name is the unique candidate key in the table STUDENTC. Each row in the table describes a different student. A student may only have one major and one minor. To each major corresponds a unique minor. Time 37 Mi STUDENTC NAME GREEN HONEY LAMPOC TAKKER YONAR AGE 26 18 33 45 28 MAJOR | MATH INFO MKTG MKTG INFO MINOR INFO MATH MGT MGT ΜΑΤΗ The table STUDENTC contains many more rows than shown. It is replaced by the following...
Examine the determinants of the functional dependencies. If any
determinant is not a candidate key, the relation is not well
formed. In this case: a. Place the columns of the functional
dependency in a new relation of their own. b. Make the determinant
of the functional dependency the primary key of the new relation.
c. Leave a copy of the determinant as a foreign key in the original
relation. d. Create a referential integrity constraint between the
original relation and...
1. Given the table above, write an SQL Query that will select
only those individuals that scored 800 or higher, sorted by last
name in ascending order.
2. Given the table above, write an SQL Query that will add a new
entry for John Smith with a score of 834. The field id is auto
incrementing.
3. Given the data below, write an SQL Query that will delete any
values where the score is below 740.
id Fname Lname Score...
Question 1. For each table, identify the primary key and the
foreign key(s). If a table does not have a foreign key, write
None.
Question 2. Do the tables exhibit entity integrity? Answer yes
or no, and then explain your answer.
Question 3. Do the tables exhibit referential integrity? Answer
yes or no, and then explain your answer. Write NA (Not Applicable)
if the table does not have a foreign key.
Question 4. Describe the type(s) of relationship(s) between
CUSTOMER...
c. 3.60 m above the floor d. at any of these positions, depending on whether the miror is below or above their eyes. e. none of these. 8. The ray aspect of light is based upon light traveling ir a. at a large, but finite velocity b) in straight lines through uniform media through the center of a thin lens on a path without any deviation. d. d. all of these. e none of these. In air, a glass lens...
Based on the test set above, calculate the precision rate.
Based on the test set above, calculate the recall rate.
calculate the F1 measure.
calculate the misclassification rate.
1-4. The table below shows the predictions made for a categorical target feature by a model for a test dataset. ID Target Prediction ID Target Prediction ID Target Prediction 8 true 1 false false 15 false false true 2 false 9 false false 16 false false false 3 false false 10 false...
production_time.txt is provided below which contains the data
for the problem set above.
Time
Size
14.28
15
8.80
9
12.49
7
9.38
4
10.89
9
15.39
21
13.09
11
12.35
6
10.66
10
8.12
7
12.61
12
8.61
2
10.99
6
8.65
5
11.52
10
7.25
3
2.63
3
9.61
4
20.20
20
19.68
17
13.46
13
18.45
30
18.05
21
9.76
4
18.27
15
14.38
17
13.27
13
11.40
10
12.32
7
19.06
23
10.66
7
13.88
16
2.53...
Use Table 8.1, a computer, or a calculator to answer the following. Suppose a candidate for public office is favored by only 47% of the voters. If a sample survey randomly selects 2,500 voters, the percentage in the sample who favor the candidate can be thought of as a measurement from a normal curve with a mean of 47% and a standard deviation of 1%. Based on this information, how often (as a %) would such a survey show that...
Using Python, Can someone please assist in the following:
These are the hints:
Summary This week's lab is to create a simple multiplication table using nested loops and if statements. Prompt the user for the size of the multiplication table (from 2x2 to 10x10). Use a validation loop to display a warning if the number is less than 2 or greater than 10 and prompt the user to enter the data again until they enter a valid number Put a...