maths mat3

• What is the mode in a set of data?

  The value that appears most often
• How do you determine the mode from a set of numbers?

  Identify the most frequently occurring number
• What is the mode of the numbers 12, 10, 11, 5, 12, 17, 12, 5?


  12
• What is the median in a set of numbers?

  The middle value when arranged in order
• How do you find the median of a set of numbers?

  Arrange the numbers and find the middle value
• What is the median of the numbers 12, 13, 17, 18, 21?

  17
• What happens when there is an even number of values in a set when finding the median?

  Average the two middle numbers
• What is the median of the numbers 11, 12, 21, 17, 45, 27?


  21
• How is the mean calculated?

  Add values and divide by total count
• What does the mean represent in a set of values?

  The average of the values
• What is the mean of the numbers 3, 7, 4, 9, 6, 8?

  6.5
• If a student's average mark is 62 from 8 results, what is the total of those marks?

  496
• If the average increased to 67 after 6 marks, what was the total of those marks?

  402
• How do you find the 6th mark if the average increased to 67?

  Subtract previous total from new total
• What is the calculation to find the 6th mark if the previous total is 310 and new total is 402?

  402 - 310 = 92