For the period from May 2014 to May 2015, the closing price for Walmart stock wa
ID: 3322752 • Letter: F
Question
For the period from May 2014 to May 2015, the closing price for Walmart stock was uniformly distributed between $73.82 and $90.47 per share.
Round part (a) answer to three decimal places. Round part (b) answer to two decimal places.
a) On a randomly selected day during this period, what is the probability that the closing price per share of the stock was greater than $80?
Probability=
b) What is the 78th percentile of the distribution of the closing price per share for the stock?
78th percentile =
Explanation / Answer
For uniform distribution the a=73.82 and b is 90.47
a) P(x>80)= (90.47-80)/(90.47-73.82)=0.6288
b) 0.78= (x-73.82)/(90.47-73.82)
or x =0.78*(90.47-73.82)+73.82 =86.807