Question

The two-way frequency table below shows data on student behavior and the use of positive phone calls home as an incentive for good behavior for a group of students at Lion's Lane Elementary School.
Complete the following two-way table of row relative frequencies.
(If necessary, round your answers to the nearest hundredth.)
Desirable behavior Undesirable behavior
Phone call 19 9
No phone call 8 6

Desirable behavior Undesirable behavior Row total
Phone call 1.00
No phone call 1.00

Answer 1

Answer:

From the frequency table, let's calculate the row total.

Row total for phone call = 19 + 9 = 28

Row total for no phone call = 8 +6 = 14

To calculate their respective row relative frequencies, let's use:

Row relative freq = $\frac{freq.}{Row total}$

Now, the two-way frequency table will be computed as:

For phone call:

Desirable behavior = $\frac{19}{28} = 0.67857$ ≈0.69

Undesirable behaviour = $\frac{9}{28} = 0.3214$ ≈0.32

No phone call:

Desirable behaviour = $\frac{8}{14} = 0.5714$ ≈ 0.57

Undesirable behaviour = $\frac{6}{14} = 0.4286$ ≈ 0.43

The complete two-way table is attached.