Daily Practice · Foundation
March 2006 5-a-day
Printing for a group?
The batch download puts all 2 tiers' March 2006 sheets in a single PDF, each tier behind its own divider page - 62 sheets in one file.
Every sheet in March 2006
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st March 2006The Spearman's rank correlation coefficient between temperature and ice cream sales for 8 days is rs = 0.95. Describe the correlation.
- 2nd March 2006A pilot survey shows that many respondents left a question blank. What might this suggest about the question?
- 3rd March 2006A researcher records the exact temperature of 30 cups of tea to the nearest 0.1 degrees C. State the type of data, giving two features.
- 4th March 2006Group A has 4 items with mean 12. Group B has 4 items with mean 20. Find the combined mean.
- 5th March 2006The number of pets owned by 15 households, recorded as collected, is: 0,1,2,1,0,3,1,2,0,1,1,2,0,1,2. Complete a frequency table for the number of pets and state the total frequency.
- 6th March 2006A bar chart shows 3 bars: Dogs 12, Cats 9, Rabbits 5. How many pets are shown in total?
- 7th March 2006Using the same diagram (0|5 8, 1|2 2 6, 2|1), what is the range?
- 8th March 2006A cumulative frequency graph shows that a cumulative frequency of 45 corresponds to a value of 60 on the horizontal axis, out of 90 total data values. How many data values are above 60?
- 9th March 2006What is the purpose of the key on a choropleth map?
- 10th March 2006A data set of 50 exam scores has the 20th percentile at 42 marks and the 80th percentile at 78 marks. Explain what these two values tell you about the middle 60% of scores.
- 11th March 2006Which spreadsheet formula would you use to find the total of the values in cells B2 to B20?
- 12th March 2006A supermarket wants to know if a new till layout reduces queuing time. Write a suitable statistical question for the start of the enquiry cycle.
- 13th March 2006Give one disadvantage of an observation study.
- 14th March 2006Two classes have the same median test score. Class A has IQR = 6 and Class B has IQR = 15. Which class's scores are more consistent, and why?
- 15th March 2006A pictogram has a key of 1 symbol = 4 people. A town has 22 people who play chess. How many symbols, including any part-symbol, should be drawn?
- 16th March 2006Using two fair six-sided dice added together, how many ways can you score a total of 7?
- 17th March 2006Find the midpoint of the class interval 10-20.
- 18th March 2006A company's yearly profits are 10, 12, 11, 15, 14 thousand pounds over five years. Describe the general trend.
- 19th March 2006Out of 200 people who ate a certain meal, 10 became ill. What is the risk of becoming ill, as a fraction in its simplest form?
- 20th March 2006A 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).
- 21st March 2006A 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.
- 22nd March 2006Find the midpoint of the class interval 30-50.
- 23rd March 2006What is wrong with the question 'Do you not think school lunches are too expensive?'
- 24th March 2006Find the 3-point moving average of 14, 18, 20.
- 25th March 2006A card is drawn at random from a normal 52-card pack. Find P(drawing a King or a Queen).
- 26th March 2006A 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?
- 27th March 2006Name the five values needed to draw a box plot.
- 28th March 2006Give one reason you might choose to keep an outlier in a data set rather than remove it.
- 29th March 2006A region records 90 crimes in a population of 45,000. Find the crude crime rate per 1000 people.
- 30th March 2006A 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?
- 31st March 2006A 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.