Skip to main content

15

Q1. If an unbiased coin is tossed then the event of getting a 'head' or 'tail' is called

impossible event

elementary event

complementary event

certain event

Q2. Which one of the following cannot be the probability of an event?

1.1

0.1

0.9

5%

Q3. If the probability of winning a game is 0.3, then the probability of losing it is:

0.5

0.2

0.7

0.3

Q4. If the probability of winning a game is 0.995, then the probability of losing is

1

0.05

0.005

0

Q5. Find the probability of getting one if a dice thrown 1000 times?

0.5

0.18

0.13

1

Q6. The probability of an event that is certain to happen is

-1

2

1

0

Q7. An urn contains lottery tickets numbered from 1 to 100. If a ticket is selected at random, then the probability that it is a perfect square is

0.01

0.08

0.09

0.1

Q8. A bag contains 12 balls out of which x are black. If one ball is drawn at random from the box, what is the probability that it will be a black ball? If 6 more black balls are put in the box the probability of drawing a black ball is now double of what it was before. Find x.

3

2

1

4

Q9. The probability of happening of an event is p. The maximum and minimum values of p are

max(p) = 4, min(p) =  1

max (p) = 2, min (p) = 3

max (p) = 3, min (p) =  2

max (p) = 1, min (p) =  0

Q10. What is the probability of a sure event?

1

Between 0 and 1

greater than 1

0

Comments

Post a Comment

Popular posts from this blog

2

Q1 : If sum of the squares of the zeros of the quadratic polynomial f(x) = x 2  - 8x + k is 40, find the value of k : 12 -12 14 -14 Q2 : When the polynomial f(x) = 4x 3  + 8x 2  + 8x + 7 is divided by the polynomial g(x) = 2x 2  - x + 1, the quotient and the remainder are Quotient = 2x + 5, Remainder = 11x + 2 Quotient = x -5, Remainder = 13 Quotient = x 2  - 5, Remainder = 15 Quotient = 2x - 5, Remainder = 11x Q3 : If the polynomial (2x + 3 ) is a factor of the polynomial  2x 3   +   9x 2   -  x  –  b : The value of b is_______  10   15      5  20 Q4 : The expression that should be subtracted from the polynomial f(x) = x 4  + 2x 3  -13x 2  - 12x + 21 so that the resulting polynomial is exactly divisible by g(x) = x 2  – 4x + 3 is 2x - 3 x 2  - 3 x 2  + 4 x - 4 Q5 : The graph of the polynomial f(x) ...
Post a Comment
Read more

6

Q 1. If in two right triangles, hypotenuse and one side of one triangle are proportional to the hypotenuse and one side of the other triangle,then the two triangles are __________. Both similar and congruent Similar Congruent Neither similar nor congruent Q 2. Two equilateral triangles are always similar never similar cannot say unless measurements are given only if they are congruent Q 3. Triangle ABC is similar to triangle DEF and their areas are 64 cm 2  and 121 cm 2  respectively. If EF= 15.4 cm, then BC = ? 11 cm 8 cm 13 cm 11.2 cm Q 4. The ratio of the areas of two similar triangles is equal to the: square of the ratio of their corresponding sides. the ratio of their corresponding sides square of the ratio of their corresponding angles None Q 5. "A line from midpoint of one side of a triangle, parallel to second side bisects the third side." is the statement of: converse of mid point theorem converse of basic proportionali...
Post a Comment
Read more

12

Q 1. Area of a sector of a circle of radius 36 cm is 54Π cm 2 . The length of the corresponding arc of the sector is 2Π cm 3Π cm 4Π cm 5Π cm Q 2. The area of a circular plot is 9856 sq. m. The cost of fencing the plot at the rate of Rs. 7 per meter will be Rs. 2000 Rs. 3456 Rs. 2464 Rs. 2211 Q 3. The ratio between the radii of two circles is 1 : 5. Calculate the ratio between their circumferences. 1 : 2 1 : 5 1 : 6 1 : 8 Q 4. The radius of a circle if its perimeter and area are numerically equal is 2 units 5 units 4 units 8 units Q 5. To warn ships of underwater rocks, a light house spreads a red colored light over a sector of angle 80 o  to a distance of 16.5 km. The area of the sea over which the ships are warned is 190.14 km 2 200 km 2 180.5 km 2 135.7 km 2 Q 6. The area and circumference of a circle are numerically equal. What is the diameter of the circle? 2 units 20 units 4 units 40 unit...
Post a Comment
Read more