2. The standard deviation as a measure of variability determines the extent to which performance in a test is homogenous or heterogeneous. A Math teacher wants to compare the performance of her students in the first quarter examinations in six different sections of grade 7 mathematics class. She selected two sections and found out that the standard deviations in the scores for the two sections A and B are 5.3 and 9.7, respectively.

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A: Example where statement is true:- Preference: - Chocolate = 6 Vanila = 2 Strawbary = 1 SO, Cocolate…

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A: We have given the following statement

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A: Parameter: Any statistical measure based on all units in the population is called Parameter.…

Q: Can you please expain why population is discrete data

A: Now population data can either be; Qualitative data Quantitative data

Q: Highlight the precautions for use of secondary data

A: The objective of this question is to understand the precautions that need to be taken while using…

Q: You have a dataset with a mean of 2, median of 3 and variance of 9.  What is the skewness?

A: Given that  Mean = 2 , Median = 3 , Variance = 9

Q: what is nominal (categorial) data?

A: Categorical data: The type of data that naturally take non-numerical values, such as words that can…

Q: What type of Data is being shown

A: Given the histogram which is a visual representation of the data given. We have to write which type…

Q: Dr. Matos sampled her statistics classes and recorded whether each student worked full-time,…

A: Given: out of 20 students Did not work = 3 Worked Full-time = 10 Part time = 7

Q: How to determine the number of observation in the model?

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Q: What do you mean by Panel Data?

A: Panel data: Panel data is a combination of quantities obtained over multiple individuals, which are…

Q: Explain the meaning of an element, a variable, an observation, and a data set.

A: In the context of statistics, an element is an object on which a measurement is taken. Elements are…

Q: How important is discrete mathematics for a Data analysis?

A: Answer given below.