Answer:
Stratified sampling technique(A)
Step-by-step explanation:
From the question, the population of an high school from which selection was made equals 461 sophomores, 328 juniors and 558 seniors.
35 sophomores, 69 juniors and 24 seniors are randomly selected. The technique used in selecting is Stratified sampling technique. This is because stratified sampling involves dividing the entire population into stratas and then selects a final sample randomly from the different strata. This means that a smaller part of the entire population is used as a sample in drawing conclusions for the entire population.
Answer:

Step-by-step explanation:
Given: Nicole is rolling a dice for a probability project
To find: theoretical probability that she will roll a 1 or a 4
Solution:
Theoretical probability expresses the chances that something will occur. It is equal to the number of favorable outcomes divided by the total number of outcomes.
Total number of outcomes = 6
Theoretical probability that she will roll a 1 or a 4 = 
y = 3/2x is the answer for this problem.
Answer:
247277 people
Step-by-step explanation:
6% of 243,000 = 14,580
243,000 + 14,580 = 257,580
4% of 257,580 = 10,303.2
Estimating 10,303.2 to 10,303
257,580 - 10,303 = 247277
24/25 in fraction and simplest form. Hope this helps!