What is the median of this set of data? 66, 51, 77, 68, 60, 75, 54, 80 29 64 66 67

66 is the median

Step-by-step explanation:

First put them from least to greatest

29 51 54 60 64 66 66 67 68 75 77 80  

Then start removing one by one from each side

51 54 60 64 66 66 67 68 75 77

54 60 64 66 66 67 68 75

60 64 66 66 67 68

64 66 66 67

66 66 67

66

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.