Answer:
a) Probability (all heads)= 0.03125
b) Probability (atleast one tail)= 0.25
Step-by-step explanation:
Total possible ways 0f 4 flips= 2^4= 16
Probability of 4 flips=1/16 =0.0625
a) Probability P(heads only)
Using combination
(heads only)= 4!/4(4-0)!
(heads only)= 24/48= 1/2 =0.5
P(heads only)= 0.5× 0.0625= 0.03125
b) using combination
Atleast one tail= 4!/1(4-1)! = 4!/3!
At least one tail= 24/6 = 4
Probability (at least one tail) = 4× 0.0625= 0.25
