Temperature (°F) Use the given frequency distribution to find the (a) class width. (b) class midpoints. (c) class boundaries. Frequency 35-39 1 40-44 45-49 50-54 11 55-59 7 60-64 7 65-69 1 ..... (a) What is the class width? 5 (Type an integer or a decimal.) (b) What are the class midpoints? Complete the table below. (Type integers or decimals.) Temperature (°F) Frequency Midpoint 35-39 1 40-44 3 45-49 5 50-54 11 55-59 7 60-64 7 65-69 1
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- make frequency distribution table where there is the class interval and the frequency. use appropriate solution for class interval. use Sturges formula for number of classes and range over the no. of classes for the class size. this will lead to creating class interval.RELATIVE FREQUENCY DISTRIBUTION Use percentages to construct the relative frequency distribution corresponding to the accompanying frequency distribution for daily commute time in Boston.Construct a frequency table. Consider the scores of 50 Grade 12 students in Physics exam. Construct a frequency distribution and compute the indicated positions using Table 1 and Table 2. The lowest value is the first lower class limit of Table 2.Number of Classes k: 2k ≥ n k=_____ Class interval or width C= Range/K=________
- Categorical and Frequency DistributionMid point of class intervals distribution Ause formulaThe distance people travel to work on a typical day - The horizontal axis is the distance traveled in a person's daily commute. The vertical axis is frequency (number of people with that distance for their daily commute). Shape of distribution: uniform symmetric skewed left skewed right
- 1. Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. 75 A graph with a bell-shaped curve, divided into 2 regions by a vertical line. The vertical line extends from the bell curve to the x-axis, and is located on the left half, under the curve. The region on the left of this line is shaded. The x-axis below the vertical line is labeled 75. Question content area bottom The area of the shaded region is enter your response here (Round to four decimal places as needed.) 2. Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. 83 A symmetric bell-shaped curve is plotted over a horizontal scale. A vertical line runs from the…USING 8 AS THE LOWER LIMIT OF THE CLASS AND WITH A WIDTH OF 1 UNIT, CONVERT IT TO FREQUENCY DISTRIBUTIONThe durability of a plastic product is directly affected by the hardness of the plastic types used. Plastic hardness which is measured with the Durometer Hardness test goes between 0 and 100. A higher number represents a harder plastic. A comparative test is conducted to investigate the quality of the plastic based on their hardness from 3 different factory sources. The test is conducted with 6 different plastic types acquired from each factory source. The types of plastic are sorted based on the nature of hardness in ascending order.
- 3. ……..Plot is used to study patterns in the values of a numeric variable over time. 1 point Time-Series Frequency polygon Doughnut chartIQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual is randomly chosen. Let X=X= IQ of an individual.(a) Find the z-score for an IQ of 106, rounded to three decimal places. (b) Find the probability that the person has an IQ greater than 106. (c) MENSA is an organization whose members have the top 2% of all IQs. Find the minimum IQ needed to qualify for the MENSA organization. (d) Shade the area corresponding to this probability in the graph below. (Hint: The x-axis is the z-score. Use your z-score from part (a), rounded to one decimal place). Shade: . Click and drag the arrows to adjust the values. -1.5Normal Distribution A normal distribution is informally described as a probability distribution that is “bell-shaped” when graphed. Draw a rough sketch of a curve having the bell shape that is characteristic of a normal distribution.