Daily Practice · Foundation
August 2011 5-a-day
Printing for a group?
The batch download puts all 2 tiers' August 2011 sheets in a single PDF, each tier behind its own divider page - 62 sheets in one file.
Every sheet in August 2011
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st August 2011A bar chart shows 3 bars: Dogs 12, Cats 9, Rabbits 5. How many pets are shown in total?
- 2nd August 2011Using the same diagram (0|5 8, 1|2 2 6, 2|1), what is the range?
- 3rd August 2011A 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?
- 4th August 2011What is the purpose of the key on a choropleth map?
- 5th August 2011A 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.
- 6th August 2011Which spreadsheet formula would you use to find the total of the values in cells B2 to B20?
- 7th August 2011A supermarket wants to know if a new till layout reduces queuing time. Write a suitable statistical question for the start of the enquiry cycle.
- 8th August 2011Give one disadvantage of an observation study.
- 9th August 2011Two 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?
- 10th August 2011A 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?
- 11th August 2011Using two fair six-sided dice added together, how many ways can you score a total of 7?
- 12th August 2011Find the midpoint of the class interval 10-20.
- 13th August 2011A company's yearly profits are 10, 12, 11, 15, 14 thousand pounds over five years. Describe the general trend.
- 14th August 2011Out 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?
- 15th August 2011A 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).
- 16th August 2011A 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.
- 17th August 2011Find the midpoint of the class interval 30-50.
- 18th August 2011What is wrong with the question 'Do you not think school lunches are too expensive?'
- 19th August 2011Find the 3-point moving average of 14, 18, 20.
- 20th August 2011A card is drawn at random from a normal 52-card pack. Find P(drawing a King or a Queen).
- 21st August 2011A 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?
- 22nd August 2011Name the five values needed to draw a box plot.
- 23rd August 2011Give one reason you might choose to keep an outlier in a data set rather than remove it.
- 24th August 2011A region records 90 crimes in a population of 45,000. Find the crude crime rate per 1000 people.
- 25th August 2011A 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?
- 26th August 2011A 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.
- 27th August 2011Class A has a mean test score of 62 and Class B has a mean of 58. Which class did better on average?
- 28th August 2011A rent index shows 2019 = 100 and 2024 = 118. Find the actual rent in 2024 if the 2019 rent was 650 pounds.
- 29th August 2011A fair coin is flipped once. What is P(heads)?
- 30th August 2011Student 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?
- 31st August 2011A coin is flipped twice. Find the probability of getting two heads.