Strictly homework not quiz 130 adults with gum disease were asked the number of times per week they used to floss beforetheir diagnoses. The (incomplete) results are shown below:# of times floss per weekFrequencyRelative FrequencyCumulative Frequency150.1154151332180.1385513.100.07694.150.115476170.1308936.200.15381137.170.1308130a. Complete the table (Use 4 decimal places when applicable)%b. What is the cumulative relative frequency for flossing 3 times per week?

Name: Strictly homework not quiz 130 adults with gum disease were asked the
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Description: Strictly homework not quiz 130 adults with gum disease were asked the number of times per week they used to floss beforetheir diagnoses. The (incomplete) results are shown below:# of times floss per weekFrequencyRelative FrequencyCumulative Frequency

The missing frequency is obtained as below: Sum of…

Answered: 130 adults with gum disease were asked…

MATLAB: An Introduction with Applications

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ISBN:9781119256830

Author:Amos Gilat

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Strictly homework not quiz

130 adults with gum disease were asked the number of times per week they used to floss before
their diagnoses. The (incomplete) results are shown below:
# of times floss per week
Frequency
Relative Frequency
Cumulative Frequency
15
0.1154
15
1
33
2
18
0.1385
51
3.
10
0.0769
4.
15
0.1154
76
17
0.1308
93
6.
20
0.1538
113
7.
17
0.1308
130
a. Complete the table (Use 4 decimal places when applicable)
%
b. What is the cumulative relative frequency for flossing 3 times per week?

Expert Solution

Step 1

The missing frequency is obtained as below:

$\begin{array}{rcl} Sum of frequencies & = & 130 \\ 15 + x + 18 + 10 + 15 + 17 + 20 + 17 & = & 130 \\ x + 112 & = & 130 \\ x & = & 130 - 112 \\ x & = & 18 \end{array}$

Thus, the missing frequency is 18

The corresponding relative frequency is obtained as below:

$\begin{array}{rcl} Relative frequency & = & \frac{frequency}{Total frequency} \\ = & \frac{18}{130} \\ = & 0.1385 \end{array}$

Thus, the corresponding relative frequency is 0.1385.

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