You measure the age metal status and earned income of an SRS of 1463 women. The number and type of variables you have measured is
Quantitative - age, income
Categorical - marital status
The histogram below shows the link in minutes of 140 songs recorded by the band Wilco. Which of the following descriptions best fits this distribution.
Skewed right, centered about 4.5, several outliers
Histogram below shows the distribution of heights are 100 randomly selected to school children and Great Britain. Which of the following description best fits this distribution
Roughly symmetric, centered about 150, spread 80
Is it of data has a mean that is much larger than the median. Which of the following statements is most consistent with this information
Distributions skewed right
The following is a box plot of the birth weight in ounces of a sample of 160 infants born in a local hospital. Use scenario 1-7 the median birth weight is approximately
110
Use scenario 1-7 the number of children with the birthweight between 102 and 122 ounces is approximately
80
You want to use the numerical summaries to describe a distribution that strongly skewed to the left which combination of measures of center and spread would be the best ones to use
Median and I QR
A lobster fishermen is keeping track of the productivity of a search for apps he has placed in a favorite location below our numbers of lobsters in the dryer so over the course of 12 different holes according to the 1.5 times like you are a rule which in
14
You can really locate the meaning of a density curve by eye because it is
The balance point
You can really look at the median of a density care of by Eye because it is
Divided the area under the curve into two equal parts
You are told that your score on an exam is at the 85 percentile of the distribution of school which of the following is a correct interpretation of this information
The score was higher than 85% of people who took the exam
Here is the list of exams going to be 14 students in Miss Williams calculus class what is the percentile of a student who score was 85
71%
And ecologist who is studying starfish population collected a starfish of the species hi Esther was interested in the distribution of the sizes of starfish on a certain shoreline one measure of sizes only the blue is that humans live relative frequency di
Median 15.2 range 4.3
A standard score describes
How far of a particular score is from the mean
Jack and Joe are both enthusiastic players of a certain computer game over the past year jacked mean score when playing the game is 12,400 with a steady deviation of 15,000 during the same period Joe's mean score is 14,200 with a standard deviation of 200
Jack - 1.07 Jill - .9 Jack wins
A data set is normally distributed with a mean of 25 and a standard deviation of eight if you calculate the standard score of every observation in this data is it what will the mean and standard deviation of this results be
I mean of zero and a standard deviation of one
It's 30 is added to every number on the list which one of the following does not change
Standard deviation
Sample was taken of the salaries of 20 employees of a large company the following I salaries in thousands of dollars for this year your convenience the data I ordered suppose each employee in the company receives $3000 raise for next year each employer sa
Unchanged
Can you quartile range of the salaries of the employees will be
Unchanged
The Z scores of the heat Sally's for the employees will be
Unchanged
Birth weight in a local hospital have a normal distribution with a mean of 110 ounces and a standard deviation of 15 ounces which of the following is the proportion of intense with both ways between 120 ounces in 140 ounces
.159
IQs among undergraduate at Mount tech or approximately normally distributed the mean undergraduate IQ is wanting about 95% of undergraduate have ikioo between 100 and 120 there's any deviations of these IQs sorry about
Five
A company produces ceramic floor tiles that are supposed to have service area of 16 in.� do you say variability in manufacturing process the actual service area has a normal distribution of the meaning of 16.1 in.� and a standard deviation of .2 inches ve
.3085
You are chatting with the principal of the local high school the topic of SAT scores comes up and the principal mentions the SAT scores at the school I normally distributed she doesn't remember the meeting with a new deviation but she doesn't member the u
75 points
The time to complete and sanitize exam is approximateNormally distributed with a mean of 70 minutes in Asana deviation of 10 minutes how much time should be given to complete the exam so that 80% of students will complete the exam at a given time
78. 4