What is the magnitude of arvin net displacement
Arvin the Ant is on a picnic table. He travels 30 cm eastward, then 25 cm northward, and finally 15 cm westward. What is the magnitude of Arvin's net displacement?
a. 70 cm
b. 57 cm
c. 52 cm
d. 29 cm
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A production process produces items, of which 6% are defective. A random sample of 160 items is selected every day and the number of defective items, say X, is counted. Using the normal approximation to the binomial, find the following:
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