Eight trials are simulated. the results are shown in the table. simulation 105 104 110 112 114 106 108 109 what is the estimated margin of error, using standard deviation? enter your answer, rounded to two decimal places, in the box.

the real correct answer is below

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

the answer for this question is 38