Please show solution and formula

1. 110 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	11	0.1	11
1		0.1182
2	14	0.1273	38
3	20	0.1818	58
4	14	0.1273	72
5	9		81
6	15	0.1364	96
7	14	0.1273	110

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

b. What is the cumulative relative frequency for flossing 5 times per week? %

B. Find the 64th percentile, P₆₄,from the following data

6	8	19	21	34
42	44	45	47	48
51	56	62	63	64
67	68	69	71	75
79	80	84	86	89
90	96	99	100

P₆₄= ________

C. Here is a set of data.

87

94

288

295

313

366

439

456

528

620

670

700

747

867

942

971

Identify the 5 number summary (min, Q1, median, Q3, max) _____,______ ,_______ ,________ , _________

D.For the data shown, answer the questions. Round to 4 decimal places where possible.

x

8.9

17.5

21.6

16.3

19.2

6.5

29.6

12.1

Find the mean: _________ Find the median: ________ Find the standard deviation: _____