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Practice each question, then open the answer or worked solution.
Mean, Median, Mode are the measures of _________.
Solution:-
Central tendency
Mean, median and mode are the representative values of a group of observations. They are also called the measures of central tendency of the data.
The probability of an event which is certain to happen is _________.
Solution:-
The probability of an event which is certain to happen is 1.
The probability of an event which is impossible to happen is _________.
Solution:-
The probability of an event which is impossible to happen is 0.
When a die is thrown, the probability of getting a number less than 7 is _________.
Solution:-
When a die is thrown, the probability of getting a number less than 7 is 1.
Let us assume that 1, 2, 3, 4, 5 and 6 are the possible outcomes when the die is thrown.
Probability of getting a number less than 7 = Number less than 7/number of sides in die.
= 6/6
= 1
In throwing a die the number of possible outcomes is _________.
Solution:-
In throwing a die the number of possible outcomes is 6.
_________ can be used to compare two collections of data.
Solution:-
A double bar graph can be used to compare two collections of data.
The representation of data with bars of uniform width is called _________.
Solution:-
The representation of the data in the form of rectangles (bars) of uniform width is called a bar graph.
If the arithmetic mean of 8, 4, x, 6, 2, 7 is 5, then the value of x is _________.
Solution:-
If the arithmetic mean of 8, 4, x, 6, 2, 7 is 5, then the value of x is 3.
The median of any data lies between the _________ and _________ observations.
Solution:-
The median of any data lies between the minimum and maximum observations.
Median is one of the observations in the data if number of observations is _________.
Solution:-
Median is one of the observations in the data if number of observations is odd.