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STA1610 ASSIGNMENT 3 SOLUTIONS 2023 YEAR MODULE $7.46
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  5. STA1610 - Introduction To Statistics (STA1610)

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STA1610 ASSIGNMENT 3 SOLUTIONS 2023 YEAR MODULE

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  • Course
  • STA1610 - Introduction To Statistics (STA1610)
  • Institution
  • University Of South Africa (Unisa)

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  • July 26, 2023
  • July 26, 2023
  • 36
  • 2022/2023
  • Exam (elaborations)
  • Questions & answers

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  • sta1610 assignment 3 solutions 2023 year module

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  • University of South Africa (Unisa)
  • STA1610 - Introduction To Statistics (STA1610)
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By: bohlaleruth23 • 1 year ago

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By: lemueltanak • 1 year ago

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Firefox https://mymodules.dtls.unisa.ac.za/mod/quiz/review.php?attempt=11599759&cmid=621492




STA1610-23-Y  Welcome Message  Assessment 3

QUIZ




Started on Wednesday, 26 July 2023, 6:25 PM
State Finished
Completed on Wednesday, 26 July 2023, 6:31 PM
Time taken 6 mins 32 secs
Marks 20.00/20.00
Grade 100.00 out of 100.00


Question 1
Which one of the following statements is incorrect with regard to the normal probability distribution?
Correct

Mark 2.00 out of
2.00


a. The standard normal distribution has a mean of 0 and standard deviation of 1.

b. The area to right of mean of a standard normal distribution is 0.5 and the area left of the
mean of a standard normal distribution is also 0.5.



c. The z-score of the mean of a normal probability distribution is one. 

d. 99.7% of the values of a normal random variable are within ±3 standard deviation of the
mean.

e. The smaller the value of the standard deviation, the narrow and steeper the curve.

,Firefox https://mymodules.dtls.unisa.ac.za/mod/quiz/review.php?attempt=11599759&cmid=621492

,Firefox https://mymodules.dtls.unisa.ac.za/mod/quiz/review.php?attempt=11599961&cmid=621492




STA1610-23-Y  Welcome Message  Assessment 3

QUIZ




Started on Wednesday, 26 July 2023, 6:38 PM
State Finished
Completed on Wednesday, 26 July 2023, 6:49 PM
Time taken 11 mins 32 secs
Marks 20.00/20.00
Grade 100.00 out of 100.00

,Firefox https://mymodules.dtls.unisa.ac.za/mod/quiz/review.php?attempt=11599961&cmid=621492



Question 1
Which one of the following statements is incorrect with regard to the normal probability distribution?
Correct

Mark 2.00 out of
2.00


a. The standard normal distribution has a mean of 0 and a standard deviation of 1.

b. The area to right of mean of a standard normal distribution is 1 and the area left of the 
mean of a standard normal distribution is also 1.



c. The z -score of the mean of a normal probability distribution is 0.

d. 95.4% of the values of a normal random variable are within ±2 standard deviation of the
mean.

e. The smaller the value of the standard deviation, the narrow and steeper the curve.

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