Answer:
the y intercept represents the point on the y axis in which the line crosses on a graph.
603 / 9 = 67
67 x 11 = 737.
737 miles in 11 hours
There are 196 countries in the world.Hope I helped.Have a nice day.
Answer:
a. No
b. Stratified Random Sampling was used
Step-by-step explanation:
a. No, I don't think the group was using a simple random sampling SRS ,because statistician students takes a survey of 200 samples and the sample was distributed into different categories , which is unlikely to happen in simple random sampling.
b. I think stratified random sampling was used because this type of sampling requires the population strata to be made.
In the question, the population is 200 and it is distributed into 4 strata which are :50 first-year students, 50 sophomores, 50 juniors, and 50 seniors.
Thus, the stratified random sampling was used
After 2 years you have 45 fishes!
20x1.5 =30 after 1st year
30x1.5=45 after 2nd year