Exam (elaborations)
DSC1630 Assignment 4(100% COMPLETE ANSWERS) Semester 1 2024 (234157)- DUE 23APRIL 2024
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DSC1630 Assignment 4 (COMPLETE ANSWERS) Semester 1 2024 (234157)- DUE 23 APRIL2024; 100% TRUSTED
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1. UNISA2. 2024
3. DSC1630-24-S1
4. Welcome Message
5. Assessment 4
QUIZ
Assessment 4
Open course index
Open block drawer
Started on Monday, 1 April 2024, 12:05 PM
State Finished
Completed on Monday, 1 April 2024, 1:11 PM
Time taken 15 mins 59 secs
Marks 14.00/15.00
Grade 93.33 out of 100.00
Question 1
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Question text
Down-To-Earth sells houses. The following table represents the selling price of a house
(y ) in thousands of rands and the number of houses sold at that price (x ).
x 5 15 19 7
y 500 900 1 500 2 000
The standard deviation for the number of houses sold is
a.
4,0.
b.
5,7.
c.
, 6,6.
d.
11,5.
Question 2
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Question text
Down-To-Earth sells houses. The following table represents the selling price of a house
(y ) in thousands of rands and the number of houses sold at that price (x ).
x 5 15 19 7
y 500 900 1 500 2 000
The correlation coefficient of a linear regression between x and y is approximately
a.
r = −0,16.
b.
r = 0,16.
c.
r = 4,00.
d.
r = 5,72.
Question 3
Complete
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Question text
The following table represents the cash inflows for the Two left feet Boutique for nine
years.
Year Cash inflow (R)
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