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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.
A right triangle whose sides are 15 cm and 20 cm is made to revolve about its hypotenuse. Find the volume and surface area of the double cone so formed. (Ans : 3768cu.cm,1318.8
If you have 60% alcohol and wish to dilute with water to make 12 liters 40% alcohol, How many liters of water should you add?
smart mind
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let setM={X,2X,4X} for any numberX .if average (arthemetic mean)of the number in setM is 14.what is the value of X?
what are cos and sin ?
i don''t understand how
Which of the following statements do you think are true about children? Indicate with 'T' for true and for false. Give reasons for your choice. a) Most primary school children a
Measures of Central Tendency Measures of Central Tendency are statistical values which tend to happen at the centre of any well ordered set of data. When these measures happen
What are some of the interestingmodern developments in cruise control systems that contrast with comparatively basic old systems
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