Question 1 :
The marks obtained by 17 students in a mathematics test (out of 100 ) are given below: <br>91, 82,100,100,96,65,82,76,79,90,46,64,72,66,68,48,49<br>The range of the data is<br>
Question 2 :
The width of each of 5 continuous classes in a frequency distribution is 5 and the lower limit of the lowest class is {tex} 10 . {/tex} The upper limit of the highest class is
Question 3 :
The class mark of the class {tex} 90 - 120 {/tex} is
Question 4 :
In the class intervals {tex} 10 - 20,20 - 30 , {/tex} the number {tex}20{/tex} is included in
Question 5 :
The mean of 100 observations is {tex} 50 . {/tex} If one of the observation which was {tex}50{/tex} is replaced by {tex} 150 , {/tex} the resulting mean will be
Question 6 :
In a frequency distribution, the mid-value of a class is 10 and the width of the class is {tex} 6 . {/tex} The lower limit of the class is
Question 7 :
For drawing a frequency polygon of a continuous frequency distribution, we plot the points whose ordinates are the frequencies of the respective classes and abscissae are respectively:
Question 9 :
The point which lies ony-axis at a distance of 5 units in the negative direction of y- axis is
Question 10 :
The distance of the point P (2, 3) from the x-axis is
Question 13 :
The points whose abscissa and ordinate have different signs will lie in
Question 14 :
The pair of equation x – a and y = b graphically represents lines which are
Question 15 :
If the perpendicular distance of a point P from the x-axis is 5 units and the foot of perpendicular lies on the negative direction of x-axis, then the point P has
Question 16 :
Which of the following points lie on the graph of the equation : 3x-5y + 7 = 0?
Question 17 :
The perimeter of a triangle with vertices (0, 4), (0, 0) and (3, 0) is
Question 18 :
If A is a point on the y-axis whose ordinate is 5 and B is the point (-3, 1), then the length of AB is
Question 19 :
The point A (9, 0), B (9, 6), C (-9, 6) and D (-9, 0) are the vertices of a