Statistics

What does f means?

• first

• forever

• frequent

• frequency

What does x stands for?

• upper limit

• lower limit

• Class mark

• class size

In the interval 1-5, what is the

class mark (x)?

• 1

• 2

• 3

• 4

How do we get fx?

• (f) + (x)

• (f) - (x)

• (f) (x)

• (f) / (x)

What is the value of fx

when f=8 and x=2?

• 10

• 6

• 16

• 4

What does the symbol ∑ mean?

• mean

• median

• mode

• summation

How do we find ∑f?

• Add all the frequency.

• Subtract all the frequency.

• Multiply all the frequency.

• Divide all the frequency.

What is ∑f if the values of f include:

1, 3, 5, 15, 6?

• 50

• 40

• 30

• 20

How do we solve for ∑fx?

• Get the difference of all the values of fx.

• Get the product of all the values of fx.

• Get the quotient of all the values of fx.

• Get the sum of all the values of fx.

How do we find the

mean of grouped data?

• ∑fx - ∑f

• ∑fx / ∑f

• ∑fx + ∑f

• ( ∑fx ) ( ∑f )