Question

In: Statistics and Probability

130 adults with gum disease were asked the number of times per week they used to...

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
0 14 0.1077
1 13 0.1 27
2 19 0.1462 46
3 0.0846 57
4 14 0.1077 71
5 20 0.1538 91
6 24 115
7 15 0.1154 130

a. Complete the table (Use 4 decimal places when applicable)

b. What is the cumulative relative frequency for flossing 6 times per week? %

250 people are asked how many siblings they have?

# of Siblings Frequency Relative Frequency Cumulative Frequency
0 53 0.212 53
1 48 0.192 101
2 48 0.192
3 51 0.204 200
4 250

a. Complete the table (Use 4 decimal places when applicable)

b. What percent of the people have exactly one sibling? %

50 part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below:

# of Courses Frequency Relative Frequency Cumulative Frequency
1 19 0.38
2 11
3

a. Complete the table.

b. What percent of students take exactly one course? %

50 part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below:

# of Courses Frequency Relative Frequency Cumulative Frequency
1 17 0.34
2 15
3

Please fill out the table.

What percent of students take exactly two courses? %

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Expert Solution

orchestra answered 1 year ago
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