Daily Practice · Higher

Daily Practice - Higher

12th October 1991

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 3, y = 72. Work out y when x = 2.
2
Vectors3 marks
a is the column vector (-2, 4) and b is (-4, 5). Work out 2a - 2b as a column vector.
3
Probability Trees3 marks
2 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Box Plots2 marks
A box plot has minimum 12, lower quartile 15, median 21, upper quartile 27 and maximum 31. Work out the interquartile range.
5
Standard Form2 marks
Work out (4 x 10^7) x (5 x 10^-6). Give your answer in standard form.

You are looking at an earlier sheet. Today's sheet is the one that adds a day.

Your run is kept in this browser only, and there is no account.

Any date always gives the same five questions, so a sheet can be set again or shared. All of October 1991, including the monthly compilation PDF.