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Sihir Perempuan Penyihir
Ikut Turutan
Universiti
Matematik
AM025 TOPIC 8 (A17)
Shirley Hee
0
Masalah tambahan (11/ 20)
Allow incorrect answer
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# 1

pilihan

What does the correlation coefficient measure?

  • The differences between two variables.
  • The strength and direction of a linear relationship between two variables.
  • The mean of a dataset.
  • The probability of an event occuring.

# 2

pilihan

If the correlation coefficient between x and y is zero, what can be concluded?

  • There is no linear relationship between x and y.
  • x causes changes in y.
  • x and y are positively correlated.
  • x and y are negatively correlated.

# 3

pilihan

What is the Pearson’s correlation coefficient when there is perfect negative relationship between two variables?

  • 0
  • 1
  • -1
  • ∞\infty

# 4

pilihan

What is the primary purpose of linear regression analysis?

  • To calculate the mean of a variable.
  • To determine the relationship between two variables.
  • To compare differences between two variables.
  • To analyse data distribution.
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