Tag: frequency table

Questions Related to frequency table

Find a 9596 confidence interval for the population mean from the following data:

Sample size n = 65, Mean = 6300, Standard deviation = 9.5, N=1000.

data handling analysis analysis of frequency distributions frequency table evs analysing data collection of data and presentation of data

  1. (6298 - 6302)

  2. (6301 - 6308)

  3. (6290 - 4310)

  4. (6288 - 6315)

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Correct Option: A

What are the shortcomings of frequency distribution?

data handling analysis analysis of frequency distributions frequency table evs analysing data collection of data and presentation of data

  1. it does not show the details that are found in raw data

  2. Once the data are grouped into classes, an individual observation has no significance in further statistical calculations

  3. Statistical calculations are based only on the values of the class mark and not on the values of the observations in that class

  4. All of these

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Correct Option: D

If $y \, = \, x^3 \, + \, 40$, find $\displaystyle \frac{d^2y}{dx^2} =$____.

data handling analysis analysis of frequency distributions frequency table evs analysing data collection of data and presentation of data

  1. $(6x^2 \, + \, 4)$

  2. (6x)

  3. $(6x \, + \, 2x^2)$

  4. (2x + 2)

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Correct Option: B

A tabular summary of a set of data showing classes of the data and the fraction of the items belonging to each class is called ______________.

data handling analysis analysis of frequency distributions frequency table evs analysing data collection of data and presentation of data

  1. the class width

  2. a relative frequency distribution

  3. a cumulative relative frequency distribution

  4. on ogive

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Correct Option: B

In a truly normal frequency distribution _________.

data handling analysis analysis of frequency distributions frequency table evs analysing data collection of data and presentation of data

  1. the mean always is the same as the standard deviation

  2. the mean is never the same as the mode

  3. the mode is never the same as the median

  4. the mean always is the same as the median

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Correct Option: D