Stacy has 3 collector’s cards. She receives 2 more cards each week that she volunteers at the student center.

Let x = the number of weeks.
Let y = the number of collector’s cards.

Which equation represents the amount of cards Stacy has?
y=3x
y=2x+3
y=3x+2
y=x2+2

y=2x+3

Step-by-step explanation:

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.