A researcher has participants choose between three advertisements. She finds that 54 prefer Ad A, 86 prefer Ad B, and 60 prefer Ad C. The probability or proportion of participants preferring Ad B is .

43% (or 0.43)

Step-by-step explanation:

The probability or proportion of participants preferring Ad B = number of participants preferring Ad B/ total number of participants

= 86 / (54 + 86 + 60)

= 0.43

= 43%

for a it would be 24 children.

for b i don't understand the question. is it saying for each individual person they pick 5 reds to 7 greens or is it the whole group. clarify and i hope this can you.

step-by-step explanation: