Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

8th October 1994

5 questions · 12 marks · Grades 4-6 · 128 question types in this band

1
Ratio2 marks
Red and blue raffle tickets are in the ratio 3 : 7. There are 24 red raffle tickets. How many raffle tickets are there altogether?
2
Vectors2 marks
a is the column vector (-6, -6) and b is (-4, -5). Work out a + b as a column vector.
3
Probability Trees3 marks
4 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Scatter Graphs3 marks
A line of best fit on a scatter graph has equation y = 7x + 38. Use it to estimate y when x = 7.
5
Error Intervals2 marks
A number y is 70 when truncated to the nearest whole number. Write down the error interval for y.

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