Daily Practice · Foundation
November 1997 5-a-day
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The batch download puts all 2 tiers' November 1997 sheets in a single PDF, each tier behind its own divider page - 60 sheets in one file.
Every sheet in November 1997
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st November 1997Find the median of: 4, 7, 9, 12, 15.
- 2nd November 1997A pictogram key shows 1 symbol = 10 pupils. A row has 3 full symbols. How many pupils does the row represent?
- 3rd November 1997Two fair six-sided dice are rolled and the scores are multiplied together. How many cells are in the sample space diagram?
- 4th November 1997What value do you plot on the horizontal axis for each class of a frequency polygon?
- 5th November 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?
- 6th November 1997In a trial, 3 out of 150 patients taking a new drug had side effects. Write this risk in '1 in n' form.
- 7th November 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).
- 8th November 1997A line graph's horizontal (time) axis has unequal gaps between the years labelled: 2010, 2011, 2015, 2016. Why could this mislead a reader?
- 9th November 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.
- 10th November 1997Rewrite the response options '0-5, 5-10, 10-15' so that they no longer overlap.
- 11th November 1997A series of 4-point moving averages is 45, 48, 52, 55. Describe the trend shown by these values.
- 12th November 1997A game has four mutually exclusive outcomes: win, draw, lose, abandoned. P(win) = 0.45, P(draw) = 0.2, P(abandoned) = 0.05. Find P(lose).
- 13th November 1997State one reason why a histogram has no gaps between its bars, unlike a bar chart.
- 14th November 1997Box plot A has a median of 50 and box plot B has a median of 42, for the same type of data. What does this tell you about the two data sets?
- 15th November 1997A shop records daily sales in pounds: 340, 355, 360, 348, 2, 352. Which value looks like a data entry error?
- 16th November 1997A town of population 10,000 records 20 births in a year. Find the crude birth rate per 1000 people.
- 17th November 1997A researcher wants a stratified sample of 30 from a population of 300 split into three regions: North (90 people), South (150 people) and East (60 people). She actually samples 9 from the North, 14 from the South and 7 from the East. Show whether her sample is correctly stratified, stating the correct numbers if not.
- 18th November 1997Using the same table (0:4, 1:10, 2:4, 3:2), find the median number of siblings.
- 19th November 1997Data set X has a range of 12 and data set Y has a range of 5. Which data set is more consistent?
- 20th November 1997An index number is 140 with a base value of 20. Find this year's value.
- 21st November 1997A bag has 4 yellow and 6 white balls. What is P(picking a yellow ball)?
- 22nd November 1997A dice is rolled 120 times and shows a 6 on 15 of those rolls. Find the relative frequency of rolling a 6.
- 23rd November 1997A bag has 4 green and 6 yellow balls. One ball is drawn, replaced, then a second is drawn. Find P(both yellow).
- 24th November 1997A pyramid has a wide base and a narrow top. What does this suggest about the population?
- 25th November 1997A distribution has a long tail of high values on the right. What type of skew is this?
- 26th November 1997A quality inspector samples 120 items from a batch of 15000 and finds 3 defective, but the sample was taken only from items made in the last hour of the day. Explain why her estimate might not be reliable, and give the estimate assuming the sample were representative.
- 27th November 1997Find the mode of 5, 6, 5, 8, 6, 6, 9.
- 28th November 1997State one disadvantage of quota sampling.
- 29th November 1997Give one reason why participants should be assigned to groups at random.
- 30th November 1997A class interval is written 10 <= x < 20. Which of these values belong in it: 10, 20, 15?