Suppose that the average number of Facebook friends users have is normally distributed with a mean of 122 and a standard deviation of about 60. Assume seventeen individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible. a. What is the distribution of ? a- N( 122 60 b. For the group of 17, find the probability that the average number of friends is less than 135. 0.8133 X c. Find the third quartile for the average number of Facebook friends. 131.74 X d. For part b), is the assumption that the distribution is normal necessary? Yes No

Q: could you clarify part a please ? is that a g? or a 9? what is part a answer??

A: Given that f(x)=x2-5x-14x-7we have to find limx→7f(x)

Q: Could you also help me with part e

A:

Q: 2. Let f(r,y) = n: Find the maximum rate of change of f(r, y) at the point (4, 1) and the direction…

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Q: Can someone answer this question CORRECTlY

A:

Q: What is the right answer? I have to show work.

A: The probability PAB is the conditional probability of happening of event A provided event B already…

Q: can you answer part A of the question please

A: Given, The following equation x2+2x+28=0 can be solved using the complete square method or the…

Q: 1. Let g(x, y) = ev* /x. Evaluate gry and gyæ.

A:

Q: I need help with parts a-c

A:

Q: part three is incorrect

A: Here, E=0.03 For 99% confidence level, the value of z is 2.576. Consider p^=0.5 (as sample size need…

Q: Need help with part 3

A: We find inverse of given Matrix

Q: could you provide an example please?

A: Let us take:  u→=0, 0, 0v→=1, 2, 3w→=4, 5, 6

Q: Evaluate the integral /II yze" dV; where D = {(r, y, z) : –1 < x < 1, -2 < y< 2, -3 < z < 3}.

A: To evaluate ∫∫∫DyzexdV, identify the limits of integration, then first integrate with respect to x…