I'll get you started:
mean = np = (500)(.56) = ?
standard deviation = √npq = √(500)(.56)(.44) = ?
Note: q = 1 - p
Finish the calculations.
To find z-score:
z = (x - mean)/sd
Note: x = 250
Once you have the z-score, look in a z-table using the score to find your probability. Remember that the question is asking "at least 250" when looking at the table.
Answer:
3rd side = 2x + 6y
Step-by-step explanation:
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See The Attachment My Friend.....
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Answer:
k=0,5/4(fraction)
Step-by-step explanation:
I hope this helps! :) You need to divide both sides.
it's equal because adding a 0 to 5.75 and making it 5.750 would be the same