Mathematics, 25.03.2021 05:30 morgan4411
Bus Stats: Homework. Due next week.
Question 1 (Show your workings)
1. In a class of 300 students in foundation economics a sample of 12 students has been. The
marks of these students on their first exam on a scale of 100 points as follow:
67,83, 75, 79, 66, 82, 90, 57, 77, 74, 74, 66
(a) Compute the expected value of the sample grades. [2 marks]
(b) Compute the median of the sample grades. [2 marks]
(c) What is the meaning of the median in the context of this problem? [2 marks]
(d) Compute the 80th percentile. What does it mean in the context of this problem?
[2 marks]
(e) Compute the value of standard deviation of these grades. [2 marks]
(f) Compute the coefficient of variation. [2 marks]
Question 2 (Show your workings)
distribution of monthly unemployment rates for PNG for o
Answers: 1
Mathematics, 22.06.2019 03:00
Let f(x) = 1/x^2 (a) use the definition of the derivatve to find f'(x). (b) find the equation of the tangent line at x=2
Answers: 2
Mathematics, 22.06.2019 03:30
Fawn bought a total of 70 cakes for a tea party. she spent $3,025. fawn bought vanilla cakes for $22 each and a fruit filled cake for $55 each. the system of equations below can be used to find the number of vanilla cakes, v, and the number of fruit filled cakes, f, fawn purchased. which system of equations has the same solution as the system below.
Answers: 2
Bus Stats: Homework. Due next week.
Question 1 (Show your workings)
1. In a class of 300 stude...
1. In a class of 300 stude...
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