Assuming the question wants to know how many fans plan on coming to atleast 20 games,
You look at the histogram, sum up the number of fans greater than x=20, that is the last 4 bars.
These are [tex]15+12+4+1=32[/tex]
Hence, A is the correct answer.
For 2nd question, it is a weighted average, not a normal average. We need to multiply each score by the percentage it is worth and then divide by the total percentage. We have,
Expected final average (or weighted average) = [tex]\frac{(85*0.1)+(90*0.15)+(80*0.25)+(100*0.5)}{0.1+0.15+0.25+0.5} \\\frac{92}{1}\\ 92[/tex] percent
Hence, D is the correct answer.
ANSWER:
First Question: A
Second Question: D
