Daily Practice · Foundation
December 2011 5-a-day
Printing for a group?
The batch download puts all 2 tiers' December 2011 sheets in a single PDF, each tier behind its own divider page - 62 sheets in one file.
Every sheet in December 2011
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st December 2011A spinner has 8 equal sections numbered 1 to 8. What is P(the spinner lands on a number greater than 5)?
- 2nd December 2011A coin is flipped 50 times and lands on heads 27 times. Find the relative frequency of heads.
- 3rd December 2011On a tree diagram, what do you do to find the probability of a single path through the branches?
- 4th December 2011On a pyramid where male bars point left and female bars point right, the bar for females aged 20-24 is longer than the bar for males aged 20-24. What does this tell you?
- 5th December 2011Describe, using the mean and median, how you could tell that a distribution is positively skewed without drawing a graph.
- 6th December 2011A sample of 25 students from a school of 500 found that 5 walk to school. Estimate how many of all 500 students walk to school.
- 7th December 2011Find the mean of 4, 7, 9, 12, 18.
- 8th December 2011A researcher wants a sample of 50 from a population of 500 using systematic sampling, with a random start of 4. List the first three people selected.
- 9th December 2011What is a control group used for?
- 10th December 2011A grouped frequency table has intervals of unequal width, 0 <= x < 10 and 10 <= x < 40. Explain why this could make the table misleading when drawing a histogram.
- 11th December 2011A pie chart represents 200 people. One sector has an angle of 45 degrees. How many people does it represent?
- 12th December 2011Out of 25 pupils, 12 like football, 9 like tennis, and 4 like both. How many like neither sport?
- 13th December 2011A scatter graph shows points that generally rise from bottom left to top right. What type of correlation does this show?
- 14th December 2011A scatter graph shows that as temperature increases, the number of hot drinks sold decreases. What type of correlation is this?
- 15th December 2011For a class, the Spearman's rank correlation coefficient between shoe size and spelling test score is rs = 0.15. Describe the correlation.
- 16th December 2011A company pilots its customer feedback survey on 20 customers before sending it to all 5000 customers. Explain why using only 20 people is still useful.
- 17th December 2011A student uses last year's census results for her project instead of running her own survey. Is this primary or secondary data?
- 18th December 2011A class of 15 students has a mean score of 30. When combined with another class of 25 students, the combined mean of all 40 students is 40. Find the mean score of the second class.
- 19th December 2011A survey of favourite colours gives: Red 6, Blue 9, Green 4, Yellow 5. How many people were surveyed in total?
- 20th December 2011A bar chart shows the bar for 'Bus' with height 40 and the bar for 'Walk' with height 25. How many more pupils travel by bus than walk?
- 21st December 2011A stem-and-leaf diagram has rows: 0|5 8, 1|2 2 6, 2|1. How many data values are there in total?
- 22nd December 2011For 80 data values, at what cumulative frequency do you read across to find the lower quartile?
- 23rd December 2011Two neighbouring regions on a choropleth map are shaded the same colour. What can you conclude about their values?
- 24th December 2011Which percentile is the same as the median?
- 25th December 2011A spreadsheet shows the formula =SUM(F1:F5)/COUNT(F1:F5) in cell F6. What statistical measure does this formula calculate?
- 26th December 2011State two things that should be decided during the planning stage of the enquiry cycle.
- 27th December 2011State whether interviewing shoppers face-to-face about their favourite supermarket is primary or secondary data collection.
- 28th December 2011For the ordered data 6, 9, 11, 14, 16, 18, 20, 23, 25, 28, find the interquartile range.
- 29th December 2011A pictogram key shows 1 symbol = 6 cakes. A row has 1 symbol and a third of a symbol. How many cakes does the row represent?
- 30th December 2011A spinner with sections A, B and C is spun alongside a fair coin. How many outcomes are in the sample space, and what is P(getting C and Heads)?
- 31st December 2011A class interval is 20-30 with frequency 8. Give the coordinates of the point plotted for this class.