A bag contains 7 red and 4 black identical balls. Two balls were picked at random from the bag and replaced each time. Find the probability the two balls were of same colour.
a
\(\frac{54}{121}\)
b
\(\frac{65}{121}\)
c
\(\frac{29}{55}\)
d
\(\frac{27}{55}\)
Explanation
Correct Option
bVideo Explanation
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Discussions (7)
FAECSB7610542
1 year ago
This time around you are picking with replacement not without replacement, đ¤Ģđ¤, now I understand why they say, "don't ask me JAMB question". đ
Yusmud
1 year ago
please my school why do you change your Math teacher. this one is Explaining like he is in front of camera not student. Please đĨē we need correction đ¤§đâšī¸
