There is a toy train that can make 10m musical sounds . It makes 2 musical sounds after being defective . What is the probability that same musical sound would be produced 5 times consecutively?( 1 of __________)?

• First sound can by one one of two sounds.
  probability that next time same sound will appear = 1/2
  probability that next time same sound will appear = 1/2
  probability that next time same sound will appear = 1/2
  probability that next time same sound will appear = 1/2
  
  probability that same musical sound would be produced 5 times consecutively=
  
  1*1/2 * 1/2 * 1/2 *1/2 = 1/16
  
  so 1 of 16.
• 13 years agoHelpfull: Yes(9) No(7)
• the answer is 1/(2^5) as only 2 musical sounds are made n d same sounds are repeated 5 tyms.....so d probability vil b 1/32.
• 13 years agoHelpfull: Yes(7) No(2)
• "sound is repeated 5 times.. read last line" which out of two we don't knw...
  now consider any one makes sound. its probability of selection = 1/2
  now repeated 5 times: 1/2*1/2*1/2*1/2*1/2= 1/32
  
• 13 years agoHelpfull: Yes(4) No(4)