Daily Practice · Foundation
April 2003 5-a-day
Printing for a group?
The batch download puts all 2 tiers' April 2003 sheets in a single PDF, each tier behind its own divider page - 60 sheets in one file.
Every sheet in April 2003
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st April 2003What value do you plot on the horizontal axis for each class of a frequency polygon?
- 2nd April 2003A time series of monthly temperatures shows one May with a temperature far below every other May on record. What might this value be called?
- 3rd April 2003In a trial, 3 out of 150 patients taking a new drug had side effects. Write this risk in '1 in n' form.
- 4th April 2003A 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).
- 5th April 2003A line graph's horizontal (time) axis has unequal gaps between the years labelled: 2010, 2011, 2015, 2016. Why could this mislead a reader?
- 6th April 2003The table shows weights, in kg, of 20 parcels: 0-5 (freq 4), 5-10 (freq 10), 10-15 (freq 6). Estimate the mean weight.
- 7th April 2003Rewrite the response options '0-5, 5-10, 10-15' so that they no longer overlap.
- 8th April 2003A series of 4-point moving averages is 45, 48, 52, 55. Describe the trend shown by these values.
- 9th April 2003A 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).
- 10th April 2003State one reason why a histogram has no gaps between its bars, unlike a bar chart.
- 11th April 2003Box 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?
- 12th April 2003A shop records daily sales in pounds: 340, 355, 360, 348, 2, 352. Which value looks like a data entry error?
- 13th April 2003A town of population 10,000 records 20 births in a year. Find the crude birth rate per 1000 people.
- 14th April 2003A 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.
- 15th April 2003Using the same table (0:4, 1:10, 2:4, 3:2), find the median number of siblings.
- 16th April 2003Data set X has a range of 12 and data set Y has a range of 5. Which data set is more consistent?
- 17th April 2003An index number is 140 with a base value of 20. Find this year's value.
- 18th April 2003A bag has 4 yellow and 6 white balls. What is P(picking a yellow ball)?
- 19th April 2003A dice is rolled 120 times and shows a 6 on 15 of those rolls. Find the relative frequency of rolling a 6.
- 20th April 2003A bag has 4 green and 6 yellow balls. One ball is drawn, replaced, then a second is drawn. Find P(both yellow).
- 21st April 2003A pyramid has a wide base and a narrow top. What does this suggest about the population?
- 22nd April 2003A distribution has a long tail of high values on the right. What type of skew is this?
- 23rd April 2003A 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.
- 24th April 2003Find the mode of 5, 6, 5, 8, 6, 6, 9.
- 25th April 2003State one disadvantage of quota sampling.
- 26th April 2003Give one reason why participants should be assigned to groups at random.
- 27th April 2003A class interval is written 10 <= x < 20. Which of these values belong in it: 10, 20, 15?
- 28th April 2003A pie chart represents 60 people. What angle represents 1 person?
- 29th April 2003A 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?
- 30th April 2003Using the line of best fit from the previous question, estimate the y-value when x = 6.