ch 11 quiz review

Question 1

which of the following is true of mean, median and mode

Answer 1

they locate the center of a distribution

Question 2

calculate the mean for the following distribution 3,4,4,9,7,6,2,5,5

Answer 2

5

Question 3

the middle value of a distribution when the distribution is ordered in either ascending or descending sequence is called the

Answer 3

median

Question 4

which of the following identifies the endpoints of a distribution of values

Answer 4

the range

Question 5

which of the following describes how close to a measure of central tendency the rest of the values in the distribution fall

Answer 5

a measure of dispersion

Question 6

calculate the range for the following values 31, 56, 48, 75, 95, 24, 15, 35

Answer 6

80

Question 7

which of the following describes the average distance of the distribution values from the mean

Answer 7

standard deviation

Question 8

the average squared deviation about the mean of a distribution of values is called the

Answer 8

varience

Question 9

determine the range for the following data distribution 56, 14, 25, 91, 73, 86, 40, 23

Answer 9

77

Question 10

an unproven supposition or proposition that temporarily explains certain facts or phenomena is called an

Answer 10

hypothesis