Answer:
-12
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Sometimes, because if the number is negative, the opposite is greater, but if the number is positive, the opposite is smaller.
The answe The answer would be C
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.
