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Question 281 NAT · 1.0 marks
The question of whether total sales in different marketplaces for product A and total sales in
different marketplaces for product B are independent across the different days is being checked.
Then what is the number of degrees of freedom for the test? (Note: Enter the answer **rounded to**
**two decimal places**. For example, if the answer is “1.235”, **then enter it as “1.24”**)
A published solution is not available for this question yet.
In an online degree program, it was found that in one term, 72 students took Mathematics, 85
students took Statistics, and 30 students took both Mathematics and Statistics. How many
students took only one of the two subjects?
A published solution is not available for this question yet.
