You want to assess the attitudes toward math by the students in your school district. First, divide the district into groups-in this case, the 20 different high schools. Then, select five of the schools randomly. This concludes the first stage. In each school, there are natural groups of students (each math class represents a group), so you select five classes randomly from each school. These are the students you will sample. The situation above is an example of which sampling type? O Stratified random sampling O Cluster sampling O Systematic sampling O Bivariate sampling

Q: L(1-a) ( In =) dz 4 1 L6(1-2) ( In =) dr

A:

Q: can I have h?

A: h). n = 81     p = 0.10

Q: D-F please

A: The normal distribution is the continuous probability distribution and has parameters mean and…

Q: Jector v has magnitude 4 and direction [left]. Which of the following represents the vector -21

A: Given query is to find the indicated vector.

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.