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Privacy The responses of 562 Facebook users to a survey
Chapter 3, Problem 22E(choose chapter or problem)
The responses of 562 Facebook users to a survey about privacy are shown in the Pareto chart. Find each probability. (Adapted from GfK Roper Public Affairs and Corporate Communications)
(a) Randomly selecting a user who trusts Facebook a moderate amount
(b) Randomly selecting a user who trusts Facebook completely
(c) Randomly selecting a user who trusts Facebook a lot or completely
(d) Randomly selecting a user who does not trust Facebook at all or trusts Facebook only a little
Questions & Answers
QUESTION:
The responses of 562 Facebook users to a survey about privacy are shown in the Pareto chart. Find each probability. (Adapted from GfK Roper Public Affairs and Corporate Communications)
(a) Randomly selecting a user who trusts Facebook a moderate amount
(b) Randomly selecting a user who trusts Facebook completely
(c) Randomly selecting a user who trusts Facebook a lot or completely
(d) Randomly selecting a user who does not trust Facebook at all or trusts Facebook only a little
ANSWER:
Solution :
Step 1 of 4:
Given the pareto chart,
Our goal is:
a). We need to find the probability that randomly selecting a Facebook user who trust a moderate amount.
b). We need to find the probability that randomly selecting a Facebook user who trust a lot or completely.
c). We need to find the probability that randomly selecting a Facebook user who trust a lot or completely.
d). We need to find the probability that randomly selecting a Facebook user who does not trust at all or trusts Facebook only a little.
a). The probability that randomly selecting a Facebook user who trusts a moderate amount is
P (a moderate amount)
P (a moderate amount)
P (a moderate amount) 0.2793
Therefore, the probability that randomly selecting a Facebook user who trusts a moderate amount is 0.2793 or 27.93%.