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    2014 HIGHER SCHOOL CERTIFIC ATE EXAMINATION Mathematics General 2 FORMULAE AND DATA SHEET Financial Mathematics Data Analysis Simple interest Mean of a sample I = Prn P r n x= sum of scores number of scores is initial amount is interest rate per period‚ expressed as a decimal is number of periods z-score For any score x‚ z= Compound interest A = P (1 + r ) A P r n n x s is final amount is initial amount is mean is standard deviation

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    Assignment

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    QuantPsych assignment #1 Psychological Statistics @ SNU‚ 2013 Spring Thursday‚ March 21‚ 13 QuantPsych Questions IQ is intended to be normally distributed with a mean of 100 and a standard deviation of 15 • • • • Generate a data set of 400 imaginary subjects’ IQ Report the following descriptive statistics of the generated data set • • mean‚ variance‚ range‚ quartile scores‚ interquartile range Tip. summary() can be helpful Draw a histogram and a box plot Based on the

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    Chebyshev’s Theorem and The Empirical Rule Suppose we ask 1000 people what their age is. If this is a representative sample then there will be very few people of 1-2 years old just as there will not be many 95 year olds. Most will have an age somewhere in their 30’s or 40’s. A list of the number of people of a certain age may look like this: |Age |Number of people | |0 |1 | |1 |2 | |2 |3

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    The Furniture Fire

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    Project 2 The Furniture Fire Case Presented by Group 1 Joey Oviedo‚ Sean Bannon‚ Abraham In 1992‚ an accidental fire destroyed a furniture company’s warehouse in Tampa‚ FL. Upon these findings‚ the furniture company made a claim to their insurance company for demand of lost profits. In doing so‚ the furniture company submitted a profit calculation‚ or the GPF‚ of the burned inventory. There no sales receipts and the prices were unknown conveniently

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    Student Name: ______________________________________ ID:______________________ 1-Learning Outcomes being assessed: Demonstrate an understanding about concepts of operations management and functions in manufacturing and services firms Appraise a business situation in terms of the operations objectives appropriate to the customers’ requirements and the competitive strategy of the firm 2-Handing in format instructions Sign this page and put it as a cover for your assignment Late submissions

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    Z Score Practice

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    NUR 0088 Z-Score Practice 1. When raw scores from normal distribution are converted to standard scores‚ the resulting distribution has a mean equal to ________ and SD equal to _________. 2. Scores on a particular test are normally distributed with a mean of 70 and an SD of 15. Between what two scores would you expect? a. 68% of the scores to fall between ____________ and _____________? b. 95% of the scores to fall between ____________ and _____________? 3. A distribution of scores has

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    1. The sampling frequency of the following analog signal‚ s(t)=4 sin 150πt+2 cos 50πt should be‚ a) greater than 75Hz b) greater than 150Hz c) less than 150Hz d) greater than 50Hz 2. Which of the following signal is the example for deterministic signal? a) Step b) Ramp c) Exponential d) All of the above 3. For energy signals a) The energy will be finite and power will be infinite b) The energy will be finite and power will be zero c) The energy will be zero and power will be infinite d) Both energy

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    Standard Deviation

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    Standard Deviation objective • Describe standard deviation and it’s importance in biostatistics. Measure of Dispersion • Indicates how widely the scores are dispersed around the central point (or mean.) -Standard deviation Standard Deviation. • The most commonly used method of dispersion in oral hygiene. • The larger the standard deviation‚ the wider the distribution curve. Standard Deviation • SD‚  ‚  (sigma) • Indicates how subjects differ from the average of the group/ the more they

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    Standard deviation is the square root of the variance (Gravetter & Wallnau‚ 2013). It uses the mean of the distribution as a reference point and measures variability by considering the distance of each score from the mean. It is important to know the standard deviation for a given sample because it gives a measure of the standard‚ or average‚ range from the mean‚ and specifies if the scores are grouped closely around the mean or are widely scattered (Gravetter & Wallnau‚ 2013). The standard deviation

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    Mean‚ Median‚ Mode‚ and Range Mean‚ median‚ and mode are three kinds of "averages". There are many "averages" in statistics‚ but these are‚ I think‚ the three most common‚ and are certainly the three you are most likely to encounter in your pre-statistics courses‚ if the topic comes up at all. The "mean" is the "average" you are used to‚ where you add up all the numbers and then divide by the number of numbers. The "median" is the "middle" value in the list of numbers. To find the median‚ your

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