Daily Practice · Foundation
November 2003 5-a-day
Printing for a group?
The batch download puts all 2 tiers' November 2003 sheets in a single PDF, each tier behind its own divider page - 60 sheets in one file.
Every sheet in November 2003
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st November 2003Values of 12, 18, 25, 31, 9, 22, 15 are grouped using intervals 0 <= x < 10, 10 <= x < 20, 20 <= x < 30, 30 <= x < 40. State the frequency of the interval 10 <= x < 20.
- 2nd November 2003A pie chart shows four categories with angles 90, 120, 60 and x degrees. Find x.
- 3rd November 2003Events A and B are mutually exclusive with P(A) = 0.3 and P(B) = 0.25. Find P(A or B).
- 4th November 2003Explain why estimating a y-value for x = 50 would be unreliable if all the plotted data only covers x-values from 0 to 20.
- 5th November 2003Two variables have a correlation coefficient close to 0. What does this suggest?
- 6th November 2003The Spearman's rank correlation coefficient between temperature and ice cream sales for 8 days is rs = 0.95. Describe the correlation.
- 7th November 2003A pilot survey shows that many respondents left a question blank. What might this suggest about the question?
- 8th November 2003A 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.
- 9th November 2003Group A has 4 items with mean 12. Group B has 4 items with mean 20. Find the combined mean.
- 10th November 2003The 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.
- 11th November 2003A bar chart shows 3 bars: Dogs 12, Cats 9, Rabbits 5. How many pets are shown in total?
- 12th November 2003Using the same diagram (0|5 8, 1|2 2 6, 2|1), what is the range?
- 13th November 2003A 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?
- 14th November 2003What is the purpose of the key on a choropleth map?
- 15th November 2003A 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.
- 16th November 2003Which spreadsheet formula would you use to find the total of the values in cells B2 to B20?
- 17th November 2003A supermarket wants to know if a new till layout reduces queuing time. Write a suitable statistical question for the start of the enquiry cycle.
- 18th November 2003Give one disadvantage of an observation study.
- 19th November 2003Two 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?
- 20th November 2003A 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?
- 21st November 2003Using two fair six-sided dice added together, how many ways can you score a total of 7?
- 22nd November 2003Find the midpoint of the class interval 10-20.
- 23rd November 2003A company's yearly profits are 10, 12, 11, 15, 14 thousand pounds over five years. Describe the general trend.
- 24th November 2003Out 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?
- 25th November 2003A 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).
- 26th November 2003A 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.
- 27th November 2003Find the midpoint of the class interval 30-50.
- 28th November 2003What is wrong with the question 'Do you not think school lunches are too expensive?'
- 29th November 2003Find the 3-point moving average of 14, 18, 20.
- 30th November 2003A card is drawn at random from a normal 52-card pack. Find P(drawing a King or a Queen).