1. Fine the mean of the data
2. Find the mean absolute deviation

MEAN: 4

MEAN ABSOLUTE DEVIATION: 2

Step-by-step explanation:

mean: 3 + 2 + 2 + 7 + 6 + 3 + 9 + 0 = 32/8 = 4

4 - 3 = 1

4 - 2 = 2

4 - 2 = 2

4 - 7 = 3

4 - 6 = 2

4 - 3 = 1

4 - 9 = 5

Mean Absolute Deviation: 1 + 1 + 2 + 2 + 2 + 3 + 5 = 16/8 = 2

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3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!