Statistics for Data Science I, Week-wise practice

Undated, Set week-04

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Question 1

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The table shows the number of people for each combination of gender and preferred mode of study.

$\begin{array}{|l|c|c|c|}\hline \text{Gender} \backslash \text{Preferred mode of study} & \text{Online} & \text{Offline} & \text{Hybrid}\\ \hline \text{Male} & 11 & 31 & 6 \\ \text{Female} & 39 & 11 & 49 \\ \hline \end{array}$

How many people have gender "Male"?

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The table shows the number of people for each combination of gender and preferred mode of study. $$\begin{array}{|l|c|c|c|}\hline \text{Gender} \backslash \text{Preferred mode of study} & \text{Online} & \text{Offline} & \text{Hybrid}\\ \hline \text{Male} & 11 & 31 & 6 \\ \text{Female} & 39 & 11 & 49 \\ \hline \end{array}$$ How many people have gender "Male"? The table shows the number of people for each combination of gender and preferred mode of study. $$\begin{array}{|l|c|c|c|}\hline \text{Gender} \backslash \text{Preferred mode of study} & \text{Online} & \text{Offline} & \text{Hybrid}\\ \hline \text{Male} & 11 & 31 & 6 \\ \text{Female} & 39 & 11 & 49 \\ \hline \end{array}$$ What is the joint relative frequency of "Male" and "Offline"? (2 decimal places) The table shows the number of people for each combination of gender and preferred mode of study. $$\begin{array}{|l|c|c|c|}\hline \text{Gender} \backslash \text{Preferred mode of study} & \text{Online} & \text{Offline} & \text{Hybrid}\\ \hline \text{Male} & 11 & 31 & 6 \\ \text{Female} & 39 & 11 & 49 \\ \hline \end{array}$$ Among the people with gender "Male", what fraction have "Offline"? (2 decimal places)