Consider the following data set 11 a Construct a frequency d

Consider the following data set:

11

a. Construct a frequency distribution using classes of 3 up to 5, 5 up to 7, etc.

b. Construct relative frequency, cumulative frequency, and cumulative relative frequency distributions. (Round \"relative frequency\" and \"cumulative relative frequency\" to 2 decimal places.)

c-1. How many of the observations are at least 7 but less than 9?

Number of observations__________?

c-2. How many of the observations are less than 9?

Number of observations_________?

d-1.What percent of the observations are at least 7 but less than 9? (Round your answer to the nearest whole percent.)

Percent of observations__________?

d-2.What percent of the observations are less than 9? (Round your answer to the nearest whole percent.)

Percent of observations___________?

Solution

Ordering the data,

4
4
5
5
5
6
6
7
7
7
7
8
8
8
8
8
8
9
9
9
10
10
11
11
12
12
13
14
14
14

a)

b)

c-1.

According to the frequency table,

10. [ANSWER]

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c-2.

According to the cumulative frequency table,

17. [ANSWER]

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d-1.

According to the relative frequency table,

33% [ANSWER]

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d-2.

According to the cumulative relative frequency table,

57% [ANSWER]

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