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Q. Show Frequency Tables?
Ans.
A frequency table is used to show how often a piece of data occurs.
Example: Michelle decides to keep track of the number of phone calls she gets in one week. She records the information in a frequency table. Find the mean number of phone calls Michelle receives in a day.
Solution: The mean is given by
The mean number of phone calls Michelle receives in one day is 6.5.
2=42gf
Variable stars are ones whose brightness varies periodically. One of the most visible is R Leonis; its brightness is modelled by the function where t is measured in days.
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