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 exectly twice in 3 consecutive flips ?
Choose the correct choice from the following answers.
A) 0.375
B) 0.25
C) 0.325
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 * 2= 
<gadget id="calculator">2 * 2 * 2</gadget>
<output>8</output>
8 ways   For 2 T and 1 TH   Thus probability is= P(HTT) + P(TTH) + P(THT)   = 1/8 + 1/8 + 1/8   = 3/8= 
<gadget id="calculator">3/8</gadget>
<output>3/8 = around 0.375</output>
.375   0.375nswer :0.375
<result>A</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 exectly twice in 3 consecutive flips ?