Maths

• What is the whole group of items or people called?

  Population
• What is a sample in statistics?

  A smaller group representing the population
• What is a method for collecting data called?

  Survey
• What does data collection involve?

  Gathering data from first-hand records
• What is a tally chart used for?

  Recording data by counting
• What does a frequency table record?

  The frequency of each value in a data set
• What is frequency in statistics?

  The number of times each data point appears
• What does a pictogram represent?

  A picture or symbol representing frequency
• How does a bar-line chart represent data?

  The height of each bar shows frequency
• What is a pie chart?

  A circle divided into sections by frequency
• How is the mean calculated?

  Add all values and divide by the number
• What is the mode in a data set?

  The value that appears most often
• What is the median?

  The middle value when data is ordered
• How is the range calculated?

  Difference between largest and smallest values
• What is an outlier?

  A data point outside most other values
• What are the key measures of central tendency?

  • Mean: Average of values
  • Mode: Most frequent value
  • Median: Middle value in ordered data
• What does a range measure in statistics?

  Spread or variability of data
• How is the mean of the data calculated if the mean is 6.5?

  By adding values and dividing by their count
• What is the modal number of hours mentioned?

  4
• What ages are listed for right-handed girls?

  18, 19, 20, 21, 22, 23
• How many children played football on a Friday?

  12
• Which days had more children playing football than Friday?

  Wednesday and Thursday
• What should be completed on a Friday regarding the program?

  A copy showing the number of children
• What are the score ranges and their meanings?

  • 8-11: Knowledge developing
  • 6-7: Need more practice
  • 4-5: Look at examples
  • 0-3: Need support from instructor