¿Qué probabilidad se tiene de que la mosca de alas normales tenga los ojos bermellón?

Step-by-step explanation:

The missing information is

tamaños de alas

color de ojos / normal / miniatura

-normal / 140 / 6

-bermellón / 3 / 151

If we sum all types, we have a total of 300 of total possible outcomes, but only 3 are events related with the probability we are looking for, because there are 3 bermellón flies.

So, the probability would be determined by the ratio

Which means there's a 1% of probability for bermellón flies.

5.5

step-by-step explanation:

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