Ages Number of students 15-18 2 19-22 4 23-26 3 27-30 7 31-34 6 35-38 10 Based on the frequency distribution above, find the relative frequency for the class with lower class limit 23 Relative Frequency = ___%
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| Ages | Number of students |
|---|---|
| 15-18 | 2 |
| 19-22 | 4 |
| 23-26 | 3 |
| 27-30 | 7 |
| 31-34 | 6 |
| 35-38 | 10 |
Based on the frequency distribution above, find the relative frequency for the class with lower class limit 23
Relative Frequency = ___%
Give your answer as a percent, rounded to one decimal place
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- 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…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 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?A sample is given from the values of the EV/Net Income index (an indicator that compares the value of an enterprise with its net profit) for 100 enterprises of this industry. 1. Make an interval variation series. 2.Plot a histogram of relative frequencies N.b) the first image is the table for the task and the second image(descriptive statistics), is describe the steps you should follow for the assignment.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?
- 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.)A chi-square distribution with 8 degrees of freedom is a graphed below. The region under the curve to the right of x2-0.05 is shaded . The area of this region is 0.05.Speeds of automobiles on a certain stretch of freeway at 11:00 PM are normally distributed with mean 65 mph. Twenty percent of the cars are traveling at speeds between 55 and 65 mph. What percentage of the cars are going faster than 75 mph?
