Click the correct answer (True & False).
Click the correct answer.
Which of the following gives the mean the data?
Sum of all observations ÷ Total number of observations
Total number of observations ÷ Sum of all observations
Sum of all observations ÷ Largest observation
Sum of all observations ÷ Smallest observation
The age (in years) of seven men are 45, 54, 28, 32, 65, 47 and 35. What is their median age?
47 years
68.5 years
57.5 years
45 years
The height (in inches) of 10 children are 41, 43, 44, 56, 38, 50, 48, 41, 44 and 45. What is their average height?
41 inches
48 inches
45 inches
44 inches
Click the correct answer.
The height or length of each bar in a bar graph represents the
.
bar diagram
frequency
spacing
A bar graph can never be
.
horizontal
slanting
vertical
The representative single values in data are called
.
pictographs
tally marks
central tendencies
