Multiple Choice Tech Active (adapted from the QCAA 2022)

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• 1

• 3

• 4

• 5

The distribution for a sample proportion pˆ has a mean of 0.15 and a standard deviation of 0.0345. The sample size is

• 10

• 14

• 107

• 116

.

• 0.467

• 0.684

• 1.211

• 1.467

A stall at the school fete sells cups of lemonade. Assuming the amount of lemonade in a cup is normally distributed with a mean of 60 mL and a standard deviation of 3 mL, 80% of the cups contain more than

• 52.4 mL

• 57.5 mL

• 61.6 mL

• 62.5 mL

• 0.40 m

• 1.60 m

• 3.22 m

• 8.09 m

• x=-4

• x=-3

• x=3

• x=4

.

• 22.13

• 14.44

• 9.97

• 7.82

• 1.48

• 2.31

• 3.37

• 4.54