Question

question 4
what is the lower class limit in the class 6-10 ?
○ a. 6.5
○ b. 5.5
○ c. 8
○ d. 6

question 5
if out of say 20 colleges in a state, 3 were selected and the entire population colleges were used to collect data on graduates in a given year, this would be of ________.
(option text partially cut off, starts with a. random sampling (assumed))

Explanation:

QUESTION 4

Step1: Recall lower class limit definition

The lower class limit of a class interval (like \(6 - 10\)) is the smallest value that can belong to the class. For the class \(6-10\), the lower bound (lower class limit) is the left - most value of the interval, which is \(6\).

When we select a few groups (clusters, here colleges) from the population of all colleges and then study the entire population of the selected clusters, this is cluster sampling. If the question was about sampling where 3 are selected from 20 and their entire population is used, the sampling method is cluster sampling (or if the options had "cluster sampling" as a choice). But since the question text is incomplete, based on the visible part, if we assume the intended answer related to sampling where we select a portion of the population (colleges) and use their entire data, it's cluster sampling (or if the option was "cluster sampling" or similar). However, if we consider the start of the option "a. random sampling" (partially visible), but the correct method here (selecting clusters and studying all in cluster) is cluster sampling.

Answer:

d. 6

QUESTION 5

(Note: The question seems to be about sampling. Since 3 colleges are selected from 20 and the entire population of those 3 is used, this is a cluster sampling (where clusters (colleges) are selected and then the whole cluster is studied) or if we assume simple random sampling of clusters. But since the question text is cut off, if we assume the options include "cluster sampling" or similar, but based on the start, if we consider that selecting a few groups (colleges) and studying the whole group, it's cluster sampling. However, since the original question's options are partially visible (like "a. random sampling" but text is cut), if we assume the intended concept: when we select a subset of the population (3 colleges from 20) and then study the entire population of those selected units, this is cluster sampling (where the colleges are clusters). But if we go by the visible start, if the option was about sampling type, and assuming the correct concept: