Plz help with this what is it. Multiply 2(5b)

Step-by-step explanation:

As no identity applies on this, we use distributive property, the property is:

(

a

+

b

)

(

c

+

d

)

=

a

(

c

+

d

)

+

b

(

c

+

d

)

Using that

2

(

5

+

6

b

)

+

5

b

(

5

+

6

b

)

Expand the brackets

10

+

12

b

+

25

b

+

30

b

2

Solve

10

+

37

b

+

30

b

2

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.