Statistics amaging

Calculate the quartile deviation of the marks of 63 students in statistics given below :

The marks of 8 students in an examination in Statistics and Mathematics are given below Find Spearman's rank Correlation coefficient.

For 50 students of a class, regression equation of marks in statistics (x) on marks in Accountancy (y) in 3y-5x+180=0 . The mean in Accoutancy is 44 and the variance of marks in statics is 9/16 of the varience of marks in Accountancy. Find the mean marks in Statistics and coefficient of correlation between marks in two subjects.

There are exactly 5 people in a bookstore at 12:00 p.m. Each person earns an annual income that is between $ 30,000 and $35,000. No one enters or leaves the bookstroes until 12:15 p.m., when a professional athlete with an annual income of more that $ 1,000,000 enters the bookstore and joins the other 5 people. The mean, median , range and standard deviation of the annual incomes of the 5 people in the bookstore at 12:00 p.m., are calculated and compared to the same 4 statisties of the annual incomes of the 6 people in the bookstore at 12:15 p.m. If it can be determind, which of the 4 statistics changed the least?

Statistical Data : Primary Data and Secondary Data.

What do you understand by the word “statistics” in (i) singular form (ii) plural form?

In a class of 125 students 70 passed in Mathematics, 55 in statistics, and 30 in both. Then find the probability that a student selected at random from the class has passed in only one subject.

In a class of 125 students 70 passed in Mathematics, 55 in statistics, and 30 in both. Then find the probability that a student selected at random from the class has passes in only one subject.

Each month. The Bureau of Labor Statistics conducts a survey called the Current Population Survey (CPS) to measure unemployement in the United States. Across the country, about 60,000 households are included in the survey sample. These households are grouped by geographic region. A summery of the January 2014 survey results for make responds in one geographica region is shown in the table below. Q. If one unemployed man from this sample is chosen at random for a follow-up survey, what is the probability that he will be between the ages of 45 to 54?

Each month. The Bureau of Labor Statistics conducts a survey called the Current Population Survey (CPS) to measure unemployement in the United States. Across the country, about 60,000 households are included in the survey sample. These households are grouped by geographic region. A summery of the January 2014 survey results for make responds in one geographica region is shown in the table below. Q. According to data in the table, for which age group did the smallest percentage of men report that they were unemployed in January 2014?