Arestaurant offers hamburgers with one, two, or three patties. let x represent the number of patties a randomly chosen customer orders on their hamburger. based on previous data, here's the probability distribution of x along with summary statistics:

x=# of patties 1 2 3
p(x) 0.40 0.50 0.10
mean: μx=1.7
standard deviation: σx≈0.67
the total price of each burger is set at $2 per patty. let t represent the total price a randomly chosen customer pays for their burger. find the mean of t

answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

y=35

x=5

step-by-step explanation: