ges Number of students 15-18 5 19-22 8 23-26 10 27-30 8 31-34 8 35-38 10 Based on the frequency distribution above, find the relative frequency for the class with lower class limit 19 Relative Frequency = ___% Give your answer as a percent, rounded to one decimal plac
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| Ages | Number of students |
|---|---|
| 15-18 | 5 |
| 19-22 | 8 |
| 23-26 | 10 |
| 27-30 | 8 |
| 31-34 | 8 |
| 35-38 | 10 |
Based on the frequency distribution above, find the relative frequency for the class with lower class limit 19
Relative Frequency = ___%
Give your answer as a percent, rounded to one decimal place
Step by step
Solved in 2 steps
- random sample of 16 subjects The ages were: Assuming that age is normally distributed in the population, can we conclude that the mean age of the population is less than 60 years? Let α = 0.05.RELATIVE FREQUENCY DISTRIBUTION Use percentages to construct the relative frequency distribution corresponding to the accompanying frequency distribution for daily commute time in Boston.Categorical and Frequency Distribution
- The age of children in kindergarten on the first day of school is uniformly distributed between 4.88 and 5.94 years old. A first time kindergarten child is selected at random. Round answers to 4 decimal places if possible. If such a child is at the 87th percentile, how old is that child? ____ years old.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…Isle Royale, an island in Lake Superior, has provided an important study site of wolves and their prey. Of special interest is the study of the number of moose killed by wolves. In the period from 1958 to 1974, there were 296 moose deaths identified as wolf kills. The age distribution of the kills is as follows. Age of Moose in Years Number Killed by Wolves Calf (0.5 yr)1-56-1011-1516-20 1105074575 Consider all ages in a class equal to the class midpoint. Find the expected age of a moose killed by a wolf and the standard deviation of the ages. (Round your answers to two decimal places.)
- IQ 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. -1.5distribution of candidates who were enrolled for the mba entrace exam and the candidates (out of those enrolled) who passed the exam in different institutes CANDIDATES ENROLLED =8550 X-16%, P- 22%, Q-15%, R-10%, S-17%, T-8%, V-12% CANDIDATES PASSED= 5700 X- 12%, P-18%, Q-17%, R-13%, S-16%, T-9%, V-15% a) What percentage of candidates passed the Exam from institute T out of the total number ofcandidates enrolled from the same institute?b) Which institute has the highest percentage of candidates that passed to the candidates enrolled?c) By how many candidates, does the number who passed institutes S and P together exceeds thenumber of candidates enrolled from institutes T and R together?Normal distribution of a quantitative trait. (a) The distribution of heights in 82 college students. (b) A frequency distribution for the heights of students shown in (a). Is height a discontinuous (discrete) trait, or does it follow a continuum?
- 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..59. Potatoes. A high-quality product is one that is consistent and has very little variability in its characteristics. Controlling variability can be more difficult with agricultural products than with those that are manufactured. The following table gives the weights, in ounces, of the 25 potatoes sold in a 10-pound bag. (a) Summarize the data graphically and numerically. Give reasons for the methods you chose to use in your summaries. (b) Do you think that your numerical summaries do an effective job of describing these data? Why or why not? (c) There appear to be two distinct clusters of weights for these potatoes. Divide the sample into two subsamples based on the clustering. Give the mean and standard deviation for each subsample. Do you think that this way of summarizing these data is better than a numerical summary that uses all the data as a single sample? Give a reason for your answer.distribution of candidates who were enrolled for the mba entrace exam and the candidates (out of those enrolled) who passed the exam in different institutes CANDIDATES ENROLLED =8550 X-16%, P- 22%, Q-15%, R-10%, S-17%, T-8%, V-12% CANDIDATES PASSED= 5700 X- 12%, P-18%, Q-17%, R-13%, S-16%, T-9%, V-15% a) What is the percentage of candidates passed to the candidates enrolled for institutes Q and Rtogether?b) What is the ratio of candidates passed to the candidates enrolled from institute P?c)What makes the candidate fail the exam?
