Step-by-step explanation:
To calculate the number of independent events that occur, the product of the probabilities of the individual events occurring must be calculated.
Therefore if A and B are independent events then:
P (A and B) = P (A) • P (B)
The exercise is as follows:
![\begin{gathered} (1)/(2)*(2)/(7)=(2)/(14);\text{ Now }we\text{ must take }square\text{ r}oot; \\ (2)/(14)=(1)/(7) \\ \text{ANSWER: }(1)/(7) \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/uiqyslccnxyx5e71mc2ch1xtrzqi9p7t4o.png)
NOTE:
To obtain the product of two fractions, the numerators must be multiplied with each other and the denominators must also be multiplied with each other.