1D. [49.09 Points] DETAILS BBBASICSTATBACC 7.5.006.Ml.5. MY NOTES ASK YOUR TEACHER Suppose x has a distribution with a mean of 50 and a standard deviation of 20. Random samples ofsize n = 64 are drawn. (a) Describe the E distribution. x has a geometric distribution. 2 has a binomial distribution. ; has an approximately normal distribution. E has a Poisson distribution. 00000 E has an unknown distribution. 0 E has a normal distribution. Compute the mean and standard deviation of the distribution. (For each answer, enter a number.) Uw=l:l (b) Find thezvalue corresponding to E = 55. {Enter an exact number.) (c) Find P{; a: 55). {Enter a number, Round your answer to four decimal places.) was: (d) Would it be unusual for a random sample of size 54 from the x distribution to have a sampie mean less than 55? Explain. O No, it would not be unusual because more than 5% of all such samples have means less than 55. D Yes, it would be unusual because more than 5% of all such samples have means less than 55. D Yes, it would be unusual because less than 5% of all such samples have means less than 55. D No, it would not be unusual because less than 5% of all such samples have means less than 55. Submit