EDA CH1 T4

Question 1

is obtained by dividing the sum of all values by the number of values in the data set

Answer 1

mean for ungrouped data

Question 2

Mean for population data:

Answer 2

h= mx/N

Question 3

Mean for sample data:

Answer 3

x=mx/n

Question 4

is the value of the middle term in a data set that has been ranked in increasing order.

Answer 4

median

Question 5

is the value that occurs with the highest frequency in a data set.

Answer 5

mode

Question 6

range

Answer 6

largest minus smallest value

Question 7

A numerical measure such as the mean, median, mode, range, variance, or standard deviation calculated for a population data set is called a

Answer 7

population parameter

Question 8

A summary measure calculated for a sample data set is called a

Answer 8

sample statistic

Question 9

mean for grouped data

Answer 9

…

Question 10

variance for grouped data

Answer 10

..

Question 11

are three summery measures that divide a ranked data set into four equal parts.

Answer 11

quartiles

Question 12

The difference between the third and first quartiles gives the

Answer 12

interquartile range