Level:
Project ID:
1003019102
Accepted:
1
Clonable:
0
Easy:
0
An urn contains \( 19 \) red balls and \( 9 \) blue balls. Find the least number of blue balls that need to be added to the urn to ensure higher probability of drawing a blue ball than \( 0.65 \).
\( 27 \)
\( 26 \)
\( 10 \)
\( 0 \)