Data Handling Test

Result

Data Handling Test - 15

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Weekly Quiz Competition

Question 1
1 / -0

Which class-interval has the maximum frequency?

A
$$0-10$$

B
$$30-40$$

C
$$10-20$$

D
$$40-50$$

Solution

We will form table from above histogram:
$$CI$$ $$Frequency$$
$$0-10$$ $$15$$
$$10-20$$ $$10$$
$$20-30$$ $$20$$
$$30-40$$ $$25$$
$$40-50$$ $$10$$
$$50-60$$ $$5$$
$$\Rightarrow$$ From above table table we can see, $$30-40$$ has frequency $$25$$ which is maximum.
$$\therefore$$ The class-interval has the maximum frequency is $$30-40$$
Question 2
1 / -0

What is frequency of the class- interval $$20-30$$ ?

A
$$25$$

B
$$20$$

C
$$5$$

D
$$10$$

Solution

$$\Rightarrow$$ In the above histogram we can see that, frequency of the class interval $$20-30$$ is $$20$$
Question 3
1 / -0

When a die is thrown, list the outcomes of an event of getting:
not a prime.

A
$$2,3,5$$

B
$$1, 4, 6$$

C
$$1,2,5$$

D
$$1,3, 6$$
Question 4
1 / -0

When a die is thrown, list the outcomes of an event of getting:
A number greater than $$5$$

A
$$5$$

B
$$4$$

C
$$6$$

D
$$3$$

Solution

For a die, the possible outcomes are, $$1,2,3,4,5,6$$
From the above outcomes, only $$6$$ is greater than $$5$$
So, the possible outcome is $$6$$.
Question 5
1 / -0

The probability of an event that cannot happen is ____?

A
$$0$$

B
$$1$$

C
$$2$$

D
$$3$$

Solution

We know that. all probabilities are between $$0$$ and $$1$$ inclusive.
A probability of $$0$$ means an event is impossible, it cannot happen.
A probability of $$1$$ means an event is certain to happen, it must happen.
Thus the probability of an event that cannot happen is $$0$$.
Question 6
1 / -0

The probability of an event that is certain to happen is ____?

A
$$1$$

B
$$2$$

C
$$3$$

D
$$4$$

Solution

The event that is sure to happen is called a certain event and probability of such an event is $$1$$ as this event is bound to happen.
Question 7
1 / -0

The probability of an impossible event is ____

A
$$3$$

B
$$2$$

C
$$1$$

D
$$0$$

Solution

Probability of event in $$E$$, $$ P\left( E \right) =\dfrac { \text {number of events in E} }{ \text {Total number of possible events}} $$
If the desirable event does not happen even once, then the numerator in the above formula becomes equal to zero.
Question 8
1 / -0

When a die is thrown, list the outcomes of an event of getting:
a number lesser than $$5$$.

A
$$1, 2, 3, 4$$

B
$$1, 2, 3$$

C
$$3, 4, 5$$

D
$$4, 5$$
Question 9
1 / -0

How many class-intervals have equal frequency ?

A
$$2$$

B
$$1$$

C
$$3$$

D
None

Solution

$$\Rightarrow$$ In above histogram we can see, class intervals $$10-20$$ and $$40-50$$ have same frequency which is $$10$$.
$$\therefore$$ The class intervals have equal frequency are $$2$$.
Question 10
1 / -0

Directions For Questions

Answer the following set of questions by reading the above pictograph.

...view full instructions

Number of TV sets sold in the year $$1995$$ is

A
$$1000$$

B
$$500$$

C
$$50$$

D
$$2000$$

Solution

$$1995=\square\times 1$$
Each $$ \square=500 $$ TV sets
On $$1995$$ no. of TV sold$$=500$$