.25+ .2 +.5= .95 so cousins cards make up 5% so 30 cards is half of that so that make 30 cards 2.5%. So 2.5 x 40 = 100% and 30 x 40=1200..... So Steve has 1200 baseball cards......
Hopefully I'm right... it just feels like it too much cards...;)
Answer:
the answer for will be x≥-4
The answer is 0.5778 or 0.578 rounded
<span>P(Z≥z)=p<span>% may help out... (:
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