Tips a pizza delivery driver. always trying to increase tips. runs an experiment on his next 40 deliveries. he flips a coin todecide whether or not to call a customer from his mobile phone when he is five minutes away, hoping this slight bump incustomer service will lead to a slight bump in tips. after 40 deliveries, he will compare the average tip percentage betweenthe customers he called and those he did not. what are the experimental units and how did he randomize treatments?

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.

dude thats to long figure it

step-by-step explanation:

a

step-by-step explanation:

strong negative correlation

c.

step-by-step explanation: