Illustration. 21.22. Comment criticaly on the following state-ments:(a) Road accidents resulted in 4513 deaths in 1958 and 5250 in1967 while the number of women drivers increased in the period.Hence women make bad drivers.(b) Of 300 persons inoculated against influenza during the epide-mic only 12% were affected. This shows a marked improvement com-paring with the remainder of the population for which the equivalentigure was 28%.

Answered: Image /qna-images/answer/ca12156f-328e-4ec7-b265-1609596f6848.jpg

Answered: on the following state- ments: (a) Road…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.6: The Inverse Trigonometric Functions

Problem 94E

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Find the equation of the regression line for the following data set. x 1 2 3 y 0 3 4
Olympic Pole Vault The graph in Figure 7 indicates that in recent years the winning Olympic men’s pole vault height has fallen below the value predicted by the regression line in Example 2. This might have occurred because when the pole vault was a new event there was much room for improvement in vaulters’ performances, whereas now even the best training can produce only incremental advances. Let’s see whether concentrating on more recent results gives a better predictor of future records. (a) Use the data in Table 2 (page 176) to complete the table of winning pole vault heights shown in the margin. (Note that we are using x=0 to correspond to the year 1972, where this restricted data set begins.) (b) Find the regression line for the data in part ‚(a). (c) Plot the data and the regression line on the same axes. Does the regression line seem to provide a good model for the data? (d) What does the regression line predict as the winning pole vault height for the 2012 Olympics? Compare this predicted value to the actual 2012 winning height of 5.97 m, as described on page 177. Has this new regression line provided a better prediction than the line in Example 2?
Which of the following conclusions is not supported by data in the graph? 1. The ratio of biomass to fossil fuel extraction did not change that much in that time. 2. Overall, fewer tons of metals were extracted than minerals. 3. The extraction of all four types of natural resources - biomass, minerals, metals and fossils fuels - increased steadily for several decades after 1980. 4. Biomass energy is a renewable resource.
If you knew that the quantities of demand for wicker) and their prices (8) during the past 30 years had given the following data in Image. Find: 1.b^ 2.b^°
answer the blank please and the "These residuals do not all have the same sign because in the first two observations listed, the observed efficiency ratios were" ty!
In general, ___________% of the values in a data set lie at or below the 28 th percentile. _______________ % of the values in a data set lie at or above the 90 th percentile.. If a sample consists of 700 test scores, _________of them would be at or below the 52 th percentile. If a sample consists of 700 test scores, ________ of them would be at or above the 64 th percentile.
A study was undertaken to determine whether there was a significant weight (in lb) loss after one year course of therapy for diabetes, and whether the amount of weight (in lb) loss was related to initial weight. The following table gives the initial weight (x) and weight after one year of therapy (y) for 16 newly diagnosed adult diabetic patients.

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