Daily Practice

Foundation

22nd May 1990

5 questions · 12 marks · Grades 3-4 · 87 question types in this band

1
Probability (Higher)3 marks
A biased coin lands on heads with probability 0.1. It is thrown 50 times. How many heads would you expect?
2
Averages from Frequency Tables3 marks
In a survey 7 households own 1 car, 5 own 2 cars and 2 own 3 cars. Work out the mean number of cars, to 2 decimal places.
3
Error Intervals2 marks
A number y is 50 when truncated to the nearest whole number. Write down the error interval for y.
4
Substitution2 marks
Work out the value of 8x + 11 when x = 8.
5
Real Life and Distance Time Graphs2 marks
Aisha drives 175 km in 2.5 hours. Work out the average speed in km/h.

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