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Mathematics, 08.01.2021 23:30 knela
#14 - 8.5D The manager of a restaurant recorded how many people were in different groups of customers and how much those groups spent on food and beverages. The scatterplot below shows the data she recorded. Food and Beverages 120 Total Spent (dollars) 80 60 9000 . Number of People Based on this scatterplot, about how much money would a group of 10 people be expected to spend on food and beverages at this restaurant? $135 B $115 $105 $150
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Mathematics, 22.06.2019 04:40
The discrete random variables x and y take integer values with joint probability distribution given by f (x,y) = a(y−x+1) 0 ≤ x ≤ y ≤ 2 or =0 otherwise, where a is a constant. 1 tabulate the distribution and show that a = 0.1.2 find the marginal distributions of x and y. 3 calculate cov(x,y).4 state, giving a reason, whether x and y are independent. 5 calculate e(y|x = 1).
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#14 - 8.5D The manager of a restaurant recorded how many people were in different groups of customer...
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