ORAL TEST DATA HANDLING - CLASS 7
Tell whether the statement is true or false:
The mode is always one of the numbers in a data.
TRUE
FALSE
The marks (out of 100) obtained by a group of students in a science test are 85, 76, 90, 85, 39, 48, 56, 95, 81 and 75.
Find the: (i) Range of the marks obtained.
Following table shows the points of each player scored in four games:
Now answer the following questions:
(i) Find the mean to determine A’s average number of points scored per game.
Following table shows the points of each player scored in four games:
Now answer the following questions:
(ii) To find the mean number of points per game for C, would you divide the total points by 3 or by 4? Why?
Following table shows the points of each player scored in four games:
Now answer the following questions:
(iii) B played in all the four games. How would you find the mean?
Following table shows the points of each player scored in four games:
Now answer the following questions:
(iv) Who is the best performer?
Is equal to
Arithmetic Mean
Median
Mode
Ashish studies for 4 hours, 5 hours and 3 hours respectively on three consecutive days. How many hours does he study daily on an average?
4 hours per day
5
3
6
The marks (out of 100) obtained by a group of students in a science test are 85, 76, 90, 85, 39, 48, 56, 95, 81 and 75.
Find the: (ii) Mean marks obtained by the group.
The marks (out of 100) obtained by a group of students in a science test are 85, 76, 90, 85, 39, 48, 56, 95, 81 and 75.
Find the: Highest and the lowest marks obtained by the students.
If two angles are complementary, then the sum of their measures is_______________.
a) 60° b) 360° c) 90° d) 180°
Find the mode of the data: 13, 16, 12, 14, 19, 12, 14, 13, 14
a) 14 b) 13 c) 12 d) 19
Find the median of the data: 13, 16, 12, 14, 19, 12, 14, 13, 14
a) 14
b) 13
c) 12
d) 19
Tell whether the statement is true or false:
(i) The mode is always one of the numbers in a data.
TRUE
FALSE
Tell whether the statement is true or false:
(ii) The mean is one of the numbers in a data.
TRUE
FALSE
Tell whether the statement is true or false:
(iii) The median is always one of the numbers in a data.
TRUE
FALSE
Tell whether the statement is true or false:
(iv) The data 6, 4, 3, 8, 9, 12, 13, 9 has mean 9.
TRUE
FALSE
Find the mode of the given set of numbers: 1, 1, 2, 4, 3, 2, 1, 2, 2, 4
1
2
3
4
The ____ of a set of observations is the observation that occurs most often.
MODE
MEDIAN
MEAN
RANGE
A ______ is a representation of numbers using bars of uniform widths.
BAR GRAPH
PIE CHART
HISTOGRAM
NONE OF THESE
__________ help to compare two collections of data at a glance.
PIECHART
DATA CHART
NUMBER CHART
DOUBLE BARGRAPH
The _____ of a set of observations is the observation that occurs most often.
MODE
MEDIAN RANGE
______ refers to the value which lies in the middle of the data with half of the observations above it and the other half below it.
MEDIAN
MODE
MEAN
RANGE
______ is a number that represents or shows the central tendency of a group of observations or data.
AVERAGE
MODE
MEDIAN
RANGE
The rainfall (in mm) in a city on 7 days of a certain week was recorded as follows:
(i) Find the range of the rainfall in the above data.
The rainfall (in mm) in a city on 7 days of a certain week was recorded as follows:
(ii) Find the mean rainfall for the week.
The rainfall (in mm) in a city on 7 days of a certain week was recorded as follows:
(iii) On how many days was the rainfall less than the mean rainfall.
The heights of 10 girls were measured in cm and the results are as follows: 135, 150, 139, 128, 151, 132, 146, 149, 143, 141.
(i) What is the height of the tallest girl?
The heights of 10 girls were measured in cm and the results are as follows: 135, 150, 139, 128, 151, 132, 146, 149, 143, 141.
(ii) What is the height of the shortest girl?
The heights of 10 girls were measured in cm and the results are as follows: 135, 150, 139, 128, 151, 132, 146, 149, 143, 141.
(iii) What is the range of the data?
The heights of 10 girls were measured in cm and the results are as follows: 135, 150, 139, 128, 151, 132, 146, 149, 143, 141.
(iv) What is the mean height of the girls?
The heights of 10 girls were measured in cm and the results are as follows: 135, 150, 139, 128, 151, 132, 146, 149, 143, 141.
(v) How many girls have heights more than the mean height.
Organise the following marks in a class assessment, in a tabular form. 4, 6, 7, 5, 3, 5, 4, 5, 2, 6, 2, 5, 1, 9, 6, 5, 8, 4, 6, 7
(iv) Find the arithmetic mean.
Find the mean of the first five whole numbers.
5
10
9
2
Organise the following marks in a class assessment, in a tabular form. 4, 6, 7, 5, 3, 5, 4, 5, 2, 6, 2, 5, 1, 9, 6, 5, 8, 4, 6, 7
(i) Which number is the highest?
Organise the following marks in a class assessment, in a tabular form. 4, 6, 7, 5, 3, 5, 4, 5, 2, 6, 2, 5, 1, 9, 6, 5, 8, 4, 6, 7
(ii) Which number is the lowest?
Organise the following marks in a class assessment, in a tabular form. 4, 6, 7, 5, 3, 5, 4, 5, 2, 6, 2, 5, 1, 9, 6, 5, 8, 4, 6, 7
(iii) What is the range of the data?
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