If a coin has an equal probability of landing heads up or tails up each time it is flipped , what is the probability that the coin will land Tails up exactly twice in 2 consecutive flips ?
Options:	A) 0.125	B) 0.25	C) 0.375	D) 0.5	E) 0.666
Total number of ways in which H or T can appear in 3 tosses of coin is   = 2 * 2= 
<gadget id="calculator">2 * 2</gadget>
<output>4</output>
4 ways   For 2 H   TT,   Thus probability is= P(TT)   = 1/4= 
<gadget id="calculator">1/4</gadget>
<output>1/4 = around 0.25</output>
.25   Answer : 0.25
<result>B</result>
If a coin has an equal probability of landing heads up or tails up each time it is flipped , what is the probability that the coin will land Tails up exactly twice in 2 consecutive flips ?