68,
54, 104, 183, 72, 84, 75, 108, 71
What is the five-number summary?

Statistical file:

{68, 54, 104, 183, 72, 84, 75, 108, 71}

Minimum: 54

Quartile Q1: 69.5

Median: 75

Quartile Q3: 106

Maximum: 183

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