Year 12 General Quiz MC 1

. A loan of $10000 has interest charged on a reducing balance at 6% p.a. compounding quarterly with quarterly repayments of $700. The balance after 6 months is:

• (A) $8696.75

• (B) $8891.75

• (C) $8900.00

• (D) $9794.00

Which of the following graphs model a geometric sequence?

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It is observed that as the number of ice blocks sold each month increases, the number of fans sold also increases. Which of these statements is therefore true?

• (A) There is a negative causation between the number of ice blocks sold and the number of fans soldeach month.

• (B) There is a positive causation between the number of ice blocks sold and the number of fans soldeach month.

• (C) There is a negative association between the number of ice blocks sold and the number of fans sold each month.

• (D) There is a positive association between the number of ice blocks sold and the number of fans soldeach month.

Which of the following graphs represents a time series plot with a three-point moving average?

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Which of the following is a planar graph with 5 vertices and 4 faces?

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The latest boat sales figures (in $'000s) for the seasons at East Coast Marina are tabulated below. Seasonal indices for summer and autumn have already been calculated from these sales figures and are included in the table. The seasonal index for summer is 1.22. What does this mean?

• The marina usually sells 22% more boats in summer than in autumn

• The marina sold 22% more boats this summer compares to last summer.

• The marina usually sells 22% more boats in summer than the average

• The marina expects to sell 22% more boats next summer compared to this summer.

Calculate the seasonal Index for spring

• 0.71

• 1.71

• 1.50

• 6.29

• 9

• 23

• 51

• 107

Determine the true time and date in San Francisco (120 W) when it is 10:00am, Tuesday the 28th of June in Sydney (150 E)

• 4pm Monday the 27th of June

• 4am Tuesday the 28th of June

• 4pm Tuesday the 28th of June

• 4am Wednesday the 29th of June

Using the regression model, the best prediction for the vocabulary test results for a students that read eleven books would be?

Y= 2.4154x + 49.225

• 72

• 74

• 76

• 78