Question: 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

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)?

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Excel Output Facebook Google a n 10 045 PX 5 02616 b n 10 026 PX 5 00239 c n 10 045 PX 0 ... View full answer

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