According to the survey, the two most popular social networking sites in the United States are Facebook and Linkedin. Of all adult Internet users, 60% have a Facebook account, 22% have a Linkedin account, and 18% visit both Facebook and LinkedIn. Find the probability that an adult has a LinkedIn account given that he or she has also a Facebook account. a. 0.25 b. 0.75 C.0.30 d. NONE

Q: ill in the missing value to make a valid probability distribution. 4 12 16 20 24 (x) 0.02 0.21 0.17…

A: Given that  Probability distribution  X 4 8 12 16 20 24 P(x) 0.02 0.21 0.17 0.46 0.05 a=?

Q: Zal2 Find the confidence level related to the critical value z2=2.2 O 97.2% O 2.8% O 89% O 98.8%

A: First option is correct 97.2%

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A: Here AS per note given I have calculated 4

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A: Note: According to Bartleby guidelines expert solve only one question and rest can be reposted.

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A: Given  ?Ax-Ax:11?Ax+1+Ax+1 , where x≥0

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A: here given ,  joint distribution of z1 and z2

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A: see the attachment.............

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A: Given that  n=1000 , p=0.5%=0.005 Find  P(at least 2)

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