periodic inventory using fifo, lifo, and weighted average cost methods
the units of an item available for sale during the year were as follows:
jan. 1 inventory 7 units at $33 $231
july 7 purchase 14 units at $36 504
nov. 23 purchase 19 units at $38 722
40 units $1,457
there are 16 units of the item in the physical inventory at december 31. the periodic inventory system is used. determine the inventory cost using (a) the first-in, first-out (fifo) method; (b) the last-in, first-out (lifo) method; and (c) the weighted average cost method (round per unit cost to two decimal places and your final answer to the nearest whole dollar).

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.

i am unable to solve this problem

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