Given data:
The numbers in the spin are 2, 5 and 7.
The expression for the probability of odd number is,
[tex]P(O)=\frac{2}{3}[/tex][tex]\begin{gathered} E=30\times\frac{2}{3} \\ =20 \end{gathered}[/tex]Thus, the number of times spin land on odd number are 20 when we spin 30 times.
