Single and Multiple Answers Test Example

A very simple Test question

What is the result of \(3 + 5 - 2\)

• 10
• 8
• 6
• 4

Exercise 1

Which of the shown numbers are prime numbers?

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 9
• 10

Exercise 2

What is the percentage \(CO_2\) in the air indicated by a \(CO_2\)-content of 400ppm?

• \(4 \cdot 10^{-5}\)
• \(4 \cdot 10^{-4}\)
• 0.004
• 0.04
• 0.4
• 4

Exercise 3

What is the formula for the area of a circle?

• \(πr^2\)
• \(2πr\)
• \(4πr^2\)
• \(\frac{4}{3}r^3\)

Exercise 4

The graph shows measurements of radiation y as a function of water depth x.
The measured values are represented by points, and the corresponding regression line is represented by the line.

Which functional relationship describes the regression line?

• \(Y(x)= b \cdot x + a\) with \(b>0\) and a=2.8
• \(Y(x)= b \cdot x + a\) with \(b>0\) and a=600
• \(Y(x)= b \cdot e^{-a \cdot x}\) with \(a>0\) and b=2.8
• \(Y(x)= b \cdot e^{-a \cdot x}\) with \(a>0\) and b=600
• \(Y(x)= b \cdot x^{-a}\) with \(a>0\) and b=600
• None of the answers are correct

Summary

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