Q2
Mamu mark 16
The following the shows the total revenue, v. in US dollar (USD), obtained mon...
Mathematics, 26.05.2021 09:40, cactuskatherine
Q2
Mamu mark 16
The following the shows the total revenue, v. in US dollar (USD), obtained monthly during
the first six months of 2020, by Law Ofice of Fox Brothers and the member of clients, red.
Number of Clients (r)
0
12
10
24
22
Revenue in USD (y)
3000
7200
10500
16000
13 600
IR 400
fa) () Calculate the Pearson's product-momcut correlation coefficienu,, for this data.
(1) Hence comment on the result.
(b) Write down the equation of the regresion line y on I.
(c) Use the line of the regression to estimate the revenue of serving 20 clients. Give you
answer came to the nearest USD.
Mouthly operating art, for the Inw office is $2900. Additionally, the cost of serving och
dient is $200
(4) Determine if the law offke makes a profit when werving 6 clients on a particular mouth.
Write down an exponion for the total revenge of serving r clients,
(0) Find mai expression for the profit of the law office when serving dients on
a particular mouth
121
(in) Find the least umber of ellents required to be wrved to result in a proat for
the mouth
(5)β
Answers: 2
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