Based on his past baseball history. Kurt has an 16% chance of reaching first base safely, a 20% chance of hitting a double, 3% chance of hitting a triple, 6% chance of hitting a homerun and a 55% chance of getting an out on his next bat. Determine the expected number of bases for his next at bat

Question

anonymous · Answer

Okay, for each base, multiply the number of bases by the probability.

anonymous · Answer

0 - 55%
1 - 16%
2 - 20%
3 - 3%
4 - 6%

anonymous · Answer

Then you add them up.

anonymous · Answer

Expected value is a weighted average.  The probability is the weights.

anonymous · Answer

4÷90?

anonymous · Answer

how did you get that?

anonymous · Answer

http://www.wolframalpha.com/input/?i=0+*+55%25+%2B+1+*+16%25+%2B2+*20%25%2B+3+*3%25%2B+4+*+6%25