exam Maths Puzzle Numerical Ability

Which of the following assumptions are required for ANOVA?
A) Each population is normally distributed
B) The populations have equal variances
C) The errors are both random an

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exam Other Question
The length of a golden retangle is approximately 1.6 times the width. Find the dimensions of a golden rectangle if its area is 9000m^2. Please kindly help me. I am having problem with this question.

The length of the swimming pool is 2x-1 meters, and the width is x+2 meters. Write a polynomial that represents the areaa. Find the area if x is 5 meters.

Thank you in advance.