Elementary Statistics Chapter 2 Updated Actual Questions With Correct Answers

ELEMENTARY STATISTICS CHAPTER 2
UPDATED ACTUAL QUESTIONS WITH CORRECT
ANSWERS

Question 1.
Table that shows classes or intervals of data entries with a count of the number of entries in each class

ANSWER
Frequency Distribution



Question 2.
Least number that can belong to a class

ANSWER
Lower Class Limit



Question 3.
Greatest number that can belong to a class

ANSWER
Upper Class Limit



Question 4.
Distance between lower and upper limits of a consecutive class
Ex: Lower limit 2 - lower limit 1 = class width
Upper limit 2- upper limit 1 = class width

ANSWER
Class Width



Question 5.
Difference between the maximum and minimum data entries

ANSWER
Range






, Question 6.
Sum of the lower and upper limits of the class divided by 2

ANSWER
Midpoint



Question 7.
The portion or percentage of the data that falls in that class
Relative Frequency = class frequency/sample size = f/n

ANSWER
Relative Frequency



Question 8.
Sum of the frequencies of that class and all previous classes
Cumulative frequency of the last class should equal the sample size

ANSWER
Cumulative Frequency



Question 9.
A bar graph that represents the frequency distribution of a data set
1. The horizontal scale is quantitative and measure the data entries.
2. Vertical scale measures the frequencies of the classes
3. Consecutive bars much touch

ANSWER
Frequency Histogram



Question 10.
Numbers that separate classes without forming gaps between them

ANSWER
Class boundaries