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Percentile** |
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: ** |
It is a value in an order set of measurement, that is calculated on the basis of percentage. |

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Pie- chart** |
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: ** |
It is a circular diagram which is a circle (pie) divided by radii (like slices of a cake or pie) |

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Platy kurtic** |
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: ** |
If the curve is flat-topped when compared to the normal curve then it is a platy kurtic curve. |

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Point Estimate** |
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: ** |
A number computed from a sample, representing a population parameter. |

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Population** |
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: ** |
A group of phenomena having something in common. |

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Positive Correlation** |
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: ** |
A relationship between two variables such that when one increases the other also increases or when one decreases the other also decreases. |

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Power** |
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: ** |
When a hypothesis is fall, the probability that a test will reject the null hypothesis is called Power. |

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Probability** |
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: ** |
A quantity measure of the chances of an outcome or outcomes of a random experiment. |

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Probability - Distribution** |
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: ** |
An unbroken ( smooth ) curve which indicates the frequency distribution of a continuous random variable. |

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Random Error** |
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: ** |
Error that occur as a result of sampling variability. |

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Random Sampling** |
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: ** |
It is the selection of individuals from the population in such a way that each individual of the population has the same chance of being selected i.e. a sample so selected must be a true representative of its population. This process of sampling is called random sampling. |

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Range** |
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: ** |
The difference between the largest and the smallest value of a set. |

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Region of acceptance** |
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: ** |
It is the area under a probability curve, in which a computed test statistics will lead to the acceptance of the null hypothesis . |

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Region of Rejection** |
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: ** |
Area under the probability (normal) curve in which a computed test statistics will lead to the rejection of the null hypothesis. |

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Regression** |
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: ** |
The estimation of the linear dependent of one or more independent variables on a dependent variable. |

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Relative frequency** |
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: ** |
The ratio of a class frequency to the total frequency. |

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Research Hypothesis** |
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: ** |
The expectation or prediction, that is to be tested by a researchers. |