Question

Data was collected for 364 randomly selected 10 minute intervals. For each ten-minute interval, the number of people entering the atrium of a large mall were recorded. The data is summarized in the table below.

Number   of Guests	Frequency
220 – 239	83
240 – 259	95
260 – 279	47
280 – 299	43
300 – 319	96

What is the class width for this GFDT?

Class width =

The number of students in the tutoring center was recorded for 54 randomly selected times. The data is summarized in the frequency table below.

Number   of Stundets	Frequency
0 – 1	14
2 – 3	5
4 – 5	8
6 – 7	15
8 – 9	12

What is the class width for this Frequency Distribution Table?

Class width =

The following data represents the age of 30 lottery winners.

24	35	36	36	38	38
39	43	43	44	51	51
52	53	59	60	63	63
64	64	65	65	66	69
70	70	70	71	75	89

Complete the frequency distribution for the data.

Age	Frequency
20-29
30-39
40-49
50-59
60-69
70-79
80-89

The following data represents the age of 30 lottery winners.

22	30	31	33	35	40
40	43	51	52	54	54
56	60	60	64	65	66
67	69	71	72	72	74
74	75	75	76	76	83

Complete the frequency distribution for the data.

Age	Frequency
20-29
30-39
40-49
50-59
60-69
70-79
80-89

Ages	Number of students
15-18	3
19-22	2
23-26	5
27-30	2
31-34	4
35-38	4

Find the relative frequency for the class with lower class limit 35

Relative Frequency = %

Give your answer as a percent, rounded to two decimal places

Ages	Number of students
15-18	2
19-22	10
23-26	8
27-30	10
31-34	9
35-38	4

Based on the frequency distribution above, find the relative frequency for the class with a lower class limit of 15

Give your answer as a percent, rounded to 1 place after the decimal point, if necessary. Type only a number in the answer box (do NOT type "%" after your answer).

Relative Frequency = %

Answer 1

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