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Consider the following relative frequency distribution Class Relative Frequency

Consider the following relative frequency distribution:

Class ...... Relative Frequency

220 up to 210 ... 0.04

210 up to 0 .... 0.28

0 up to 10 .... 0.26

10 up to 20 ..... 0.22

20 up to 30 ..... 0.20

a. Suppose this relative frequency distribution is based on a sample of 50 observations. Construct a frequency distribution. How many of the observations are at least 210 but less than 0?

b. Construct a cumulative frequency distribution. How many of the observations are less than 20?

c. Graph a relative frequency polygon.

Class ...... Relative Frequency

220 up to 210 ... 0.04

210 up to 0 .... 0.28

0 up to 10 .... 0.26

10 up to 20 ..... 0.22

20 up to 30 ..... 0.20

a. Suppose this relative frequency distribution is based on a sample of 50 observations. Construct a frequency distribution. How many of the observations are at least 210 but less than 0?

b. Construct a cumulative frequency distribution. How many of the observations are less than 20?

c. Graph a relative frequency polygon.

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