A fair coin is thrown. Let A be the event "at most four heads appear" and B be the event "exactly two heads appear."Find Pr(B|A).

What will be an ideal response?

 =  = 

Mathematics

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Let U = {1, 2, 4, 5, a, b, c, d, e}. Find the complement of the set.A = {2, 4, b, d}

A. {1, 5, a, c, e} B. {1, 3, 5, a, c, e} C. {1, 2, 4, 5, a, b, c, d, e} D. {1, 5, a, e}

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Mathematics

Write as a fraction or as a mixed number150%

A. 1 
B. 15
C. 3
D.  

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Mathematics

Write in exponential notation.16 ? 16 ? 16 ? 16

A. 161 B. 415 C. 164 D. 4 ? 16

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Mathematics

Change the logarithmic expression to an equivalent expression involving an exponent.logb 49 = 

A. 492/3 = b
B. b = 49
C. b3/2 = 49
D. b2/3= 49

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Mathematics