ANSWER
![P(E)=(1)/(2)](https://img.qammunity.org/2020/formulas/mathematics/high-school/7bm8hst4fdox4i5ksywphcprh52by3l6lk.png)
EXPLANATION
From the given information, Elena chooses a number from 1 to 10.
The sample space is
S={1,2,3,4,5,6,7,8,9,10}
n(S)=10
The numbers greater than 5 are:
E={6,7,8,9,10}
n(E)=5
The probability that, she chooses a number greater than 5 is:
![P(E) = (n(E))/(n(S))](https://img.qammunity.org/2020/formulas/mathematics/high-school/52o9aqrenys5aaj74eh26umts8sjpwqk1b.png)
Substitute the values,
![P(E) = (5)/(10)](https://img.qammunity.org/2020/formulas/mathematics/high-school/coham8h0sgpfk47v19i9ugbre89izot0mz.png)
![P(E) = (1)/(2)](https://img.qammunity.org/2020/formulas/mathematics/high-school/ssgcpygrg5sa6onem72kf6wdhgf2ga0mqy.png)