Suppose customers arrive randomly one at a time (independant of each other) to a drive-through at a fast food restaurant at a rate of 1 every 10 minutes on the average. Suppose an employee is working a 4 hour shift there. Let X be the number of customers that vise the drive-through during their shift. a. What is the distribution of X? Give the name of the distribution and the appropriate parameters. b. Whnt is the mean and variance of this distribution? Give your answer as a number, but include the formulas (or logic) used. Note be very careful with mixing time units! c. What is the probability they have no customers during their shift?d. What is the probability that they have between 15 and 25 customers during their shift?

step-by-step explanation:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

step-by-step explanation:

given that megan owns a clothing boutique.

the profits of 2010, 11, are recorded and shown as follows:

years since     2010 0     1     2     3       4       5

profits made in 1000's   39       84     111     120   111     84

we find that profit gradually increases form 2010 to 2013 upto 120,   then starts decreasing.

the profits for 2012 and 2014 are the same while that of 2011 and 2015 are also the same.

this shows that there is symmetry about the line profit = 120000

hence answer is:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

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10 cm

step-by-step explanation:

if the polygon is a rectangle, then the perimeter is x+x+y+y. using the values that you gave, the perimeter is 3+3+2+2=10cm.

4400

step-by-step explanation:

this is answer of 144 cubic meters