A standard normal distribution has a mean of zero; half the bell curve is to the left of zero and half to the right.
A standard normal distribution has a standard deviation of 1 and follows the 68-95-99.7 rule; e.g. 99.7% of the probability is between -3 and +3.
Choice a
Answer:
The Range is the difference between the lowest and highest values. Example: In {4, 6, 9, 3, 7} the lowest value is 3, and the highest is 9. So the range is 9 − 3 = 6.
Step-by-step explanation:
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The answer is 4.5 because you are multiplying 1.5 times 3 = 4.5
Answer:
First box{8} Second box {224}
Step-by-step explanation: I do K12