A tree farming company is testing how many items customers purchase during their visits. Based on many results, the (partial) probability distribution below was determined for the discrete random variable X = number of pieces of information remembered (during a fixed time period). What is the missing probability P (X=6) ? Note that the missing probability should be reported to the second decimal place.

Question

Mathematics

Lutz

22 March, 19:16

A tree farming company is testing how many items customers purchase during their visits. Based on many results, the (partial) probability distribution below was determined for the discrete random variable X = number of pieces of information remembered (during a fixed time period). What is the missing probability P (X=6) ? Note that the missing probability should be reported to the second decimal place.

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Reilly Bird · Answer 1

X probability = 0.02

Cumulative frequency at x (6) = 1

Step-by-step explanation:

X P (X) Cf (X)

1 0.58 0.58

2 0.18 0.58 + 0.18 = 0.76

3 0.10 0.76 + 0.10 = 0.86

4 0.07 0.86 + 0.07 = 0.93

5 0.05 0.93 + 0.05 = 0.98

6 0.02 0.98 + 0.02 = 1