1.2 convert the following decimal number into scientic number: 1.2.1 1.366 (2) 1.2.2 14588 (2) 1 .3 Indicate the level of the measurement of the data in the table below. Write down the number of the question with the correct answer. Example 1.3.11 Ratio. (10) Data Level of measurement 1.3.1 Religious afliation 1.3.2 The number of sit-ups you can do 1.3.3 Number of trafc fatalities 1.3.4 Time required to complete a crossword puzzle 1.3.5 The ages of the students in your study group 1.3.6 The colours you can identify in a rainbow 1.3.7 Telephone numbers in a telephone directory 1.3.8 Shoe sizes 1.3.9 The three major professional tennis tournaments 1.3.10 The classication of Boeing aircraft as 727, 737 or 747, according to size Duration of International Calls 64 Number of Calls 10 8 16 24 32 40 48 Duration (minutes) 2.1.1 What is the sample size? (3) 2.1.2 How many intervals are used in the construction of the ogive? (3)2.1.1 What is the sample size? 2.1.2 How many intervals are used in the construction of the ogive? 2.1.3. What is the most frequently occurring time of calls? 2.1.4. Half of the calls are shorter than howr many minutes? 2.1.5. What is the percentage of the calls that are longer than 24 minutes? 2.1.6. Approximate the number of the calls are 10 minutes or less? (3) (3) (3) (3) (4) (4)