Understanding Frequency Tables and Calculations

Emily, a guitar repairer, struggles with reading her repair records due to poor handwriting. The video tutorial helps solve this by using absolute and relative frequency tables. It explains how to calculate unknown values using percentages and concludes with final calculations to complete the records.

What is the main issue Emily faces with her records?

• They are in a foreign language.

• She lost them.

• They are incomplete.

• They are unreadable due to bad handwriting.

What do the absolute frequency tables show?

• The percentage of each repair type.

• The exact number of each type of repair.

• The types of guitars repaired.

• The total number of repairs.

How is the percentage of broken electric strings calculated?

• By dividing the number of electric strings by the total number of strings.

• By multiplying the number of electric strings by 100.

• By adding the number of electric strings to the total number of strings.

• By subtracting the number of electric strings from the total number of strings.

What is the total number of broken strings Emily fixed?

• 110

• 70

• 262

• 180

How is the value of 'a' determined in the frequency table?

• By multiplying 70 by 180.

• By dividing 70 by 180.

• By adding 70 to 180.

• By subtracting 70 from 180.

What is the value of 'c' in the frequency table?

• 180

• 262

• 110

• 131

What is the final value of 'D' in the frequency table?

• 262

• 180

• 131

• 110

How is the percentage value 'X' calculated?

• By adding 21 to 131.

• By multiplying 21 by 131.

• By dividing 21 by 131.

• By subtracting 21 from 131.

What is the final percentage value of 'X'?

• 38.89%

• 46.56%

• 16.03%

• 61%

What does the final calculation confirm about the chart?

• It is missing data.

• It is correctly interpreted.

• It is partially correct.

• It is incorrect.