The length of sere's pencil is given by the equation y=15 - x where y is its length in cm and x is the number of days she uses it. a)Find the length of her pencil on day 6.

b) on what day is her pencil 5cm long?

a) Find the length of her pencilonday 6

Step-by-step explanation:

b

step-by-step explanation:

ez

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.