Genetics test Week 31 Hardy Weinberg 1. If the frequency of allele p in a certain population is 0.78‚ what is the frequency of allele q? (1) 2. If the frequency of recessive homozygotes for a particular gene within a population is 0.36‚ what is the frequency of the recessive allele? (1) 3. What does the “2pq” part of the equation represent? (1) The peppered moth Biston betularia showed an increase in melanic (dark) forms during the industrial revolution. In most polluted
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another sine wave at 50% modulation ‚ calculate the transmitted power. 8. An AM transmitter at 27 MHz develops 10W of carrier power into a 50 ohm load. It is modulated by a 2 KHz sine wave between 20 and 90% modulation. Determine a. Component frequencies in the AM signal b. Maximum and minimum waveform voltage of the AM signal at 20% and 90% modulation. c. Sideband signal voltage and power at 20% and 90% modulation d. Load current at 20% and 90% modulation 9. An AM
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Rajalakshmi Engineering College‚ Thandalam Prepared by Ms. S.Sheena Christabel‚ Lecturer/ECE EC2311-COMMUNICATION ENGINEERING III YEAR EEE A Introduction to Communication Engineering Communication Engineering Course Work introduces different methods of analog communication and their significance. Digital Communication methods for high bit rate transmission are explained. It involves the concepts of source and line coding techniques for enhancing rating of transmission of minimizing the errors
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follows: # of movies Frequency Relative Frequency Cumulative Relative Frequency 0 5 0.2 0.2=0.2 1 9 0.36 0.2+0.36=0.56 2 6 0.24 0.56+0.24=0.8 3 4 0.16 0.8+0.16=0.96 4 1 0.04 0.96+0.04=1 Table 1.1 (Hint: This is a frequency table. Read the section in the textbook!) a. Find the sample mean x ANSWER = 1.48 b. Find the sample standard deviation‚ s ANSWER S=1.12 c. Complete the columns of the chart. #of movies Bin Frequency Cumulative % 0 0 1
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from a frequency table. The formula for the standard deviation of a set of data is [pic] Recap question A sample of 60 matchboxes gave the following results for the variable x (the number of matches in a box): [pic]. Calculate the mean and standard deviation for x. Introductory example for finding the mean and standard deviation for a table: The table shows the number of children living in a sample of households: |Number of children‚ x |Frequency‚ f
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accepted wireless networking standard‚ followed by 802.11a and 802.11g [1]. 802.11b and 802.11g standards use the 2.40 GHz (gigahertz) band‚ operating (in the United States) under Part 15 of the FCC Rules and Regulations. Because of this choice of frequency band‚ 802.11b and 802.11g equipment can incur interference from microwave ovens‚ cordless telephones‚ Bluetooth devices‚ and other appliances using this same band. The 802.11a standard uses the 5 GHz band‚ and is therefore not affected by products
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M-commerce We have mentioned about the M-commerce‚ and next we will talk about Ubiquitous computing and sensory networks. * The first one is the definition of ubiquitous computing * Some smart applications of ubiquitous computing: radio frequency identification (RFID). Sensor network: is the device installed with wireless communications that can detect light‚ temperature or vibration. Now‚ we want to summary about what we can learn through our presentation and this chapter… And finally
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associated with each value b. Expresses the arithmetic average of a frequency distribution c. Indicates the typical value of a frequency distribution d. Represents the midpoint of a frequency distribution e. Comparing quantities where x and y are completely independent of each other or x can be included in y f. Represents the simplest measure of spread (or variability) g. Indicates the most frequent observation in a frequency distribution h. Represents a theoretical family of distributions that
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Use the tabular and graphical methods of descriptive statistics to summarize the sample data. Your report should contain summaries such as the following: 1. A frequency‚ relative frequency & percentage frequency distribution for the method of payment. 2. A bar graph or pie chart for the method of payment 3. Frequency and cumulative frequency distributions for the amount spent in each method of payment 4. Ogive for the amount spent in each method of payment 5. A cross tabulation for the variables method
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CHAPTER OUTLINE AND REVIEW In Chapter 1‚ you were introduced to the concept of statistics and in exercise *6 of that chapter you were given a frequency distribution of the ages of 180 students at a local college‚ but you were not told how this frequency distribution was formulated. In Chapter 2 of your text‚ you were informed how such frequency distributions could be formulated and were introduced to several tabular and graphical procedures for summarizing data. Furthermore‚ you were shown
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