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The number of days that...

The number of days that it takes the post office to deliver a letter from City A to City B has the following probability distribution, where k is some constant:# of days 1 2 3 4 5 6

Probability 0.03 3k 0.43 2k 0.12 kWhat is the probability that a letter sent on Monday from City A will arrive in City B by Thursday, i.e., what is the probability it takes 3 or fewer days for the letter to be delivered?

Question 29 options:

0.67

0.64

0.58

0.61

0.70

Probability 0.03 3k 0.43 2k 0.12 kWhat is the probability that a letter sent on Monday from City A will arrive in City B by Thursday, i.e., what is the probability it takes 3 or fewer days for the letter to be delivered?

Question 29 options:

0.67

0.64

0.58

0.61

0.70

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