Daily Practice · Foundation
March 2013 5-a-day
Printing for a group?
The batch download puts all 2 tiers' March 2013 sheets in a single PDF, each tier behind its own divider page - 62 sheets in one file.
Every sheet in March 2013
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st March 2013A class has 12 boys and 8 girls. One student, a girl, leaves the room. A second student is then chosen at random from those remaining. Find P(second student chosen is a girl given the first was a girl).
- 2nd March 2013A newspaper bar chart showing company profit over 5 years has no vertical axis labels or scale, just bars of different heights. Explain the problem with this.
- 3rd March 2013Find the midpoint of the class interval 30-50.
- 4th March 2013What is wrong with the question 'Do you not think school lunches are too expensive?'
- 5th March 2013Find the 3-point moving average of 14, 18, 20.
- 6th March 2013A card is drawn at random from a normal 52-card pack. Find P(drawing a King or a Queen).
- 7th March 2013A histogram for exam scores has bars of equal width 10 marks, covering 0-10, 10-20, 20-30, 30-40, with heights 2, 8, 15, 5. How many students took the exam?
- 8th March 2013Name the five values needed to draw a box plot.
- 9th March 2013Give one reason you might choose to keep an outlier in a data set rather than remove it.
- 10th March 2013A region records 90 crimes in a population of 45,000. Find the crude crime rate per 1000 people.
- 11th March 2013A youth club has 45 members under 13 and 75 members aged 13 to 17 (120 total). A stratified sample of 40 members is needed. How many aged 13 to 17 should be sampled?
- 12th March 2013A different table shows test scores out of 5 for 30 students: 1 (freq 3), 2 (freq 5), 3 (freq 9), 4 (freq 8), 5 (freq 5). Find the mean score.
- 13th March 2013Class A has a mean test score of 62 and Class B has a mean of 58. Which class did better on average?
- 14th March 2013A rent index shows 2019 = 100 and 2024 = 118. Find the actual rent in 2024 if the 2019 rent was 650 pounds.
- 15th March 2013A fair coin is flipped once. What is P(heads)?
- 16th March 2013Student A rolls a dice 20 times and gets a 6 four times. Student B rolls the same dice 300 times and gets a 6 forty-eight times. Whose relative frequency is a more reliable estimate of the true probability, and what is it?
- 17th March 2013A coin is flipped twice. Find the probability of getting two heads.
- 18th March 2013A pyramid is roughly the same width all the way up, with only a slightly narrower top. What does this suggest?
- 19th March 2013A distribution has mean = mode = median. What does this suggest about its shape?
- 20th March 2013A 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.
- 21st March 2013A set of 7 numbers has a mean of 12. Find the total of all 7 numbers.
- 22nd March 2013A population has 200 members and a sample of 20 is needed using systematic sampling. Find the sampling interval.
- 23rd March 2013What is meant by the independent variable in an experiment?
- 24th March 2013Why must class intervals in a grouped frequency table not overlap?
- 25th March 2013Chart 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?
- 26th March 2013Using the pupils in the previous question, find P(likes football only).
- 27th March 2013A line of best fit passes through the points (0, 4) and (10, 24). Find its gradient.
- 28th March 2013What word describes a situation where one variable directly causes a change in another?
- 29th March 2013The 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.
- 30th March 2013Give one reason a researcher would carry out a pilot survey.
- 31st March 2013Is 'favourite ice cream flavour' qualitative or quantitative data?