Mark the correct alternative in the following:
A coin is tossed 4 times. The probability that at least one head turns up, is
Given:
n=4
p(getting atleast one head)=?
• 0 head : HHHH
• 1 head : HTTT
THTT
TTHT
TTTH
• 2 heads :HHTT
HTHT
HTTH
THHT
THTH
TTHH
• 3 heads: HHHT
HHTH
HTHH
THHH
• 4 heads : HHHH
Total ouctomes = 16
Outcomes containing atleast 1 head = 15
P(getting atleast 1 head)=