Quiz 2 - STATISTICS

Find the range of the following numbers: 6, 4, 5, 9, 4, 4, 3, 6, 5, 4, 5

• 6
• 3
• 4
• 5

8, 9, 5, 6, 2, 4, 8, 0

The median of the above number is ____

• 7
• 5.5
• 4
• 6.5

8, 9, 5, 6, 2, 4, 8, 0

The mode of the above number is ____

• 2
• 6
• 5
• 8

8, 9, 5, 6, 2, 4, 8, 0

The mean of the above number is ____

• 6 1/2

• 5 1/4

• 7 1/2

• 4 1/4

Which of the following methods cannot be used in representing statistical data?

• Bar chart

• Frequency table

• Ogive

• Pie chart

• Time table

What is the median of the following set of numbers: 3.5, 4.7, 1.2, 3.4, 5.7, 7.5?

• 2.3

• 3.2

• 4.1

• 4.6

The ages (in years) of some students in a certain class are given as 10, 14, 12, 13, 16, 14 and 12. Determine their mean age.

• 13
• 14
• 11
• 15
• 12

If the mean of x, 7, 12, 13 and 15 is 10.4, find the value of x.

• 4

• 5

• 6

• 7

• 8

A factory employs 30 workers. 12 of them earn $1,500.00 each per day, 9 earn $1,200.00 each per day while earch of the rest earn $1,000.00 per day. What is the average daily pay?

• $1,260.00
• $1,350.00
• $1,500.00
• $1,100.00
• $1,200.00

The average age of 6 girls is 14 years. When another girl is added, the average age becomes 13 years. What is the age of the new girl added?

• 6

• 7

• 8

• 9

• 11