Daily Practice · Foundation
January 2001 5-a-day
Printing for a group?
The batch download puts all 2 tiers' January 2001 sheets in a single PDF, each tier behind its own divider page - 62 sheets in one file.
Every sheet in January 2001
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st January 2001A class interval is written 10 <= x < 20. Which of these values belong in it: 10, 20, 15?
- 2nd January 2001A pie chart represents 60 people. What angle represents 1 person?
- 3rd January 2001A rectangle labelled 20 contains two non-overlapping circles for events A and B with 8 and 5 inside them. How many outcomes are outside both circles?
- 4th January 2001Using the line of best fit from the previous question, estimate the y-value when x = 6.
- 5th January 2001Define correlation in your own words.
- 6th January 2001The Spearman's rank correlation coefficient between the age of a used car and its price is rs = -0.88. Describe the correlation.
- 7th January 2001State one change a researcher might make to a questionnaire as a result of a pilot survey.
- 8th January 2001State whether 'shoe size' is discrete or continuous, and explain why.
- 9th January 2001Group A has 18 items with mean 62. Group B has 22 items with mean 70. Find the combined mean.
- 10th January 2001A tally shows 4 full groups of five plus 2 extra marks for one category. What is the frequency?
- 11th January 2001A composite bar chart shows exam grades at a school: the bar has a section from 0 to 10 for Grade 9-7, a section from 10 to 34 for Grade 6-4, and a section from 34 to 40 for Grade 3-1. How many students got Grade 6-4?
- 12th January 2001Using the diagram from the question above, what is the mode?
- 13th January 2001A cumulative frequency graph for 80 data values is used to estimate the median. At what cumulative frequency value do you read across to the curve?
- 14th January 2001A choropleth map uses class intervals of 0-10, 10-30, 30-40 and 40-90. Why might this be misleading?
- 15th January 2001What percentage of data lies below the 40th percentile?
- 16th January 2001Which spreadsheet formula would you use to find how many values are in the range C1 to C50?
- 17th January 2001A researcher decides her sample size was too small after seeing her results. Which stage of the cycle does this belong to?
- 18th January 2001A question asks: 'Don't you agree that the new bus timetable is an improvement?' State what is wrong with this question.
- 19th January 2001For the ordered data 2, 4, 5, 7, 8, 9, 11, 13, 14, find the lower quartile (Q1) and upper quartile (Q3).
- 20th January 2001A pictogram shows 5 full symbols for apples sold, with a key of 1 symbol = 12 apples. How many apples were sold?
- 21st January 2001Using the two-coin sample space, find P(exactly one head).
- 22nd January 2001A frequency polygon has classes of unequal width: 0-10 and 10-30. Explain why comparing the heights of the two plotted points directly can be misleading.
- 23rd January 2001Explain why using a time series trend to estimate a value many years into the future is less reliable than estimating one year ahead.
- 24th January 2001Using your answers to the previous question, find the relative risk for phone users compared with non-users, and interpret it.
- 25th January 2001A pack of 10 cards is numbered 1 to 10. One card is drawn and not replaced; it is even. A second card is then drawn. Find P(second card is even given the first card was even).
- 26th January 2001A pie chart is drawn showing 3 sectors that look visually equal in size, but the data is 50%, 30% and 20%. What is wrong?
- 27th January 2001A class interval 0-10 has frequency 6. Find frequency x midpoint.
- 28th January 2001What is wrong with the question 'How old are you and do you smoke?'
- 29th January 2001What does a moving average smooth out in seasonal data, and what does the result reveal?
- 30th January 2001P(A) = 0.4 and P(B) = 0.35, where A and B are mutually exclusive. Find P(A or B).
- 31st January 2001A histogram has unequal class widths. Explain why the height of a bar can no longer be read directly as the frequency.