maths
posted by angel .
The data in table below gives marks for an exam of a particular tutors students in 2005 and 2006.
Year students marks on the exam
2005 75 86 91 65 83 75 88 90 66 99
2006 60 78 75 98 79 90 80 88 81 90
from the following choose two options which are true about the table above.
a) the mean of the 2005 marks are greater than the mean of 2006 marks.
b) The interquartile range of the 2005 marks is more than the interquartile range of the 2006 marks.
c) The median of the 2005 marks is less than the median of the 2006 marks.
d) The standard deviation of the 2005 marks is the same as the standard deviation of the 2006 marks.
e) The range of the 2005 is greater than the range of the 2006 marks.
f) The relative spread of the 2005 marks is greater than the relative spread of 2006 marks.
g) The lower quartile of the 2005 marks is the same as the lower quartile of the 2006 marks.
h) The upper quartile of the 2005 marks is greater than the upper quartile of the 2006 marks.
wod it be c and e ?
Respond to this Question
Similar Questions

Accounting
Assume that Hickory Company has the following data related to its accounts receivable: 2005 Net Sales $ 1,425,000 Net receivables Beginning of year 375,000 End of year 420,000 2006 Net Sales $ 1,650,000 Net receivables Beginning of … 
accounting
Assume that Hickory Copany has the following data related to its accounts receivable: 2005 2006 net sales $1,425,000 $1,650,000 net receivables beginning of 2005:375,000 beginning of 2006:333,500 end of 2005:420,000 end of 2006:375,000 … 
economics
Find the CPI for 2006(2005 is the base year; and 2005 as the fixed basket of goods for each year. also 2005 CPI=100) 2006 has price of $2 for 150 quantity of socks and $3 for 100 quantity of gloves. 
Economics
The answer i got is : GDP grew 10% GDP for 2006 using 2005 as the base year increase by 20% real GDP grow? 
Economics
Help The answer i got is : GDP grew 10% GDP for 2006 using 2005 as the base year increase by 20% real GDP grow? 
math
A university reported that its enrollment increased from 11,801 students in 20052006 to 12130 students in 20062007. What is the ratio of the number of students 20062007 to the number in 20052006 
programming in c++
a program in c++ that accepts exam marks for 10 students and stores them in an array.the program should then calculate and utput the average marks for the class.and give an account of marks below average and output all marks above … 
Excel Filtering
Return 2005 Return 2006 Return 2007 I have a data table with returns for 3 different years. I want to use a filter that only includes records where the return is increasing each year(i.e.: 2005<2006<2007) I"m stuck please help. 
maths, statistics
Marks in an examination are distributed normally with a mean of 55 and standard deviation of 15. 200 students sit the exam. (a) If the passing mark is 40, what is the number of students expected to fail? 
Maths
There are fifty students in a class. In a 100 marks exam, 20 students scored less than 30 marks, 5 students scored more than 70 marks and the remaining scored between 30 and 70 marks. If passing score is 55 marks and 40% students have …