1
Question
A box contains 6 black and 4 white balls. Two balls are drawn at random from it, probability that both are white is ______.
A box contains 6 black and 4 white balls. Two balls are drawn at random from it, probability that both are white is ______.
Open in App
Solution
The correct option is C 2/15
Probability shows the relationship between two variables in the
form of ratio, percentage or proportion where there the chances of occurrence
of one variable is expressed in terms of the other variable which is usually
sample space.
The sample
space for the event is 10C2 = 45
Let the required event be E ( getting 2 white balls)
n(E) = 4C2 = 6
Therefore, P( getting a 2 white balls) = n(E)/S
= 6/45
= 2/15
Probability shows the relationship between two variables in the form of ratio, percentage or proportion where there the chances of occurrence of one variable is expressed in terms of the other variable which is usually sample space.
The sample space for the event is 10C2 = 45
Let the required event be E ( getting 2 white balls)
n(E) = 4C2 = 6
Therefore, P( getting a 2 white balls) = n(E)/S
= 6/45
= 2/15
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
