Answer: -1
Step-by-step explanation:
Subtract each fraction by each other than simplify
Answer:
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hellojdk feon you tuve tío asmem dmdk jeux keju gilaa
What vectors? do you have more info?
Assume that a step to the north is in the positive direction and a step in the south is in the negative direction.
Then,

and

After 1 hour of independent steps,

and

Therefore, by Central Limit Theorem, the distribution of the random walk is normal with a mean of 0 cm and a standard deviation of 17.32 cm. He is expected to be somewhere around his starting point after 1 hour.