2.27 Consider the following frequency distribution for a sample of 40 observations: Class Frequency 0


2.27 Consider the following frequency distribution for a<br>sample of 40 observations:<br>Class<br>Frequency<br>0 < 5<br>5 < 10<br>6.<br>10 < 15<br>12<br>15 < 20<br>10<br>20 < 25<br>a. Calculate the sample mean.<br>b. Calculate the sample variance and sample standard<br>deviation.<br>

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Jun 11, 2022
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