Daily Practice · Foundation
January 1997 5-a-day
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The batch download puts all 2 tiers' January 1997 sheets in a single PDF, each tier behind its own divider page - 62 sheets in one file.
Every sheet in January 1997
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st January 1997A garden centre sampled 45 out of 3000 trees and found 40 had survived the winter. Estimate how many of the 3000 trees survived the winter.
- 2nd January 1997A set of 7 numbers has a mean of 12. Find the total of all 7 numbers.
- 3rd January 1997A population has 200 members and a sample of 20 is needed using systematic sampling. Find the sampling interval.
- 4th January 1997What is meant by the independent variable in an experiment?
- 5th January 1997Why must class intervals in a grouped frequency table not overlap?
- 6th January 1997Chart A represents 80 votes and has a 'Green Party' sector of 45 degrees. Chart B represents 150 votes and has a 'Green Party' sector of 30 degrees. Which chart represents more actual Green Party votes?
- 7th January 1997Using the pupils in the previous question, find P(likes football only).
- 8th January 1997A line of best fit passes through the points (0, 4) and (10, 24). Find its gradient.
- 9th January 1997What word describes a situation where one variable directly causes a change in another?
- 10th January 1997The Spearman's rank correlation coefficient between hours spent watching TV and test score is rs = -0.4. Describe the strength and direction of the correlation.
- 11th January 1997Give one reason a researcher would carry out a pilot survey.
- 12th January 1997Is 'favourite ice cream flavour' qualitative or quantitative data?
- 13th January 1997Group A has 10 items with mean 50. Group B has 5 items with mean 80. Find the combined mean.
- 14th January 1997The frequencies for four categories are 8, 5, 12, 3. What is the total number of data items?
- 15th January 1997A composite bar for Year 7 shows Boys 20 stacked below Girls, with a total bar height of 45. How many girls are there?
- 16th January 1997A back-to-back stem-and-leaf diagram compares two classes' test scores. For stem 7, Class A (left side) has 3 leaves and Class B (right side) has 4 leaves. Which class had more students scoring in the 70s?
- 17th January 1997On a cumulative frequency graph, what do you plot each cumulative frequency against?
- 18th January 1997Give one limitation of choropleth maps.
- 19th January 1997In a data set of 200 values, at what position, counting from the smallest, would you expect to find the 25th percentile?
- 20th January 1997Which formula finds the highest value in the range E1 to E30?
- 21st January 1997A researcher draws a bar chart from her results. Which stage of the cycle is this?
- 22nd January 1997Give one advantage of using a questionnaire to collect data.
- 23rd January 1997Find the median of: 4, 7, 9, 12, 15.
- 24th January 1997A pictogram key shows 1 symbol = 10 pupils. A row has 3 full symbols. How many pupils does the row represent?
- 25th January 1997Two fair six-sided dice are rolled and the scores are multiplied together. How many cells are in the sample space diagram?
- 26th January 1997What value do you plot on the horizontal axis for each class of a frequency polygon?
- 27th January 1997A time series of monthly temperatures shows one May with a temperature far below every other May on record. What might this value be called?
- 28th January 1997In a trial, 3 out of 150 patients taking a new drug had side effects. Write this risk in '1 in n' form.
- 29th January 1997A drawer has 7 black socks and 5 white socks. Two socks are taken without replacement. Find P(second sock is black given the first sock was black).
- 30th January 1997A line graph's horizontal (time) axis has unequal gaps between the years labelled: 2010, 2011, 2015, 2016. Why could this mislead a reader?
- 31st January 1997The table shows weights, in kg, of 20 parcels: 0-5 (freq 4), 5-10 (freq 10), 10-15 (freq 6). Estimate the mean weight.