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Question: Social log-ins involve recommending or sharing


Social log-ins involve recommending or sharing an article that you read online. According to Janrain, in the first quarter of 2017, 45% signed in via Facebook compared with 26% for Google.
Source: Jainrain.com blog, “Identity and social login trends across the web,” www .janrain.com/blog/identity-trends-across-web/.
If a sample of 10 social log-ins is selected, what is the probability that
a. more than 5 signed in using Facebook?
b. more than 5 signed in using Google?
c. none signed in using Facebook?
d. What assumptions did you have to make to answer (a) through (c)?

2.99

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