TRUE / FALSE

Question 11 Mark

Total number of outcomes when two dice are rolled togehter $= 6 + 6.$

Answer

Total number of outcomes when two dice are rolled together $= 6 + 6. ($False$)$
Correct : It is $6 \times 6 = 36$

Question 21 Mark

$P($occurrence of an event$) = P($non occurence of an event$).$

Answer

$P($occurrence of an event$) = P($non$-$occurence of an event$). ($False$)$
Correct : Probability is of occurence of an event.

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Question 31 Mark

Probability of an event $E$ satisfies $0 \leq P(E) \leq 1$.

Answer

Probability of an event $E$ satisfies $0 \leq P(E) \leq 1. ($True$)$

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Question 41 Mark

In tossing a coin getting head or tail are equally likely events.

Answer

In tossing a coin getting head or tail are equally likely events. $($True$)$

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Question 51 Mark

In a pie chaiangle of sector $=\frac{\text { value of item }}{\text { sum of values of all items }} \times 180^{\circ}$

Answer

In a pie chart, angle of sector = $\frac{\text { value of item }}{\text { sum of values of all items }} \times 180^{\circ} \text { (False) }$
Correct : It is $\frac{\text { value of item }}{\text { sum of values of all items }} \times 360^{\circ}$

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Question 61 Mark

In a pie chart, size of each sector is proportional to the value of item represented by it.

Answer

In a pie chart, size of each sector is proportional to the value of item represented by it. $($True$)$

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Question 71 Mark

In histograms, there is no gap between two adjacent rectangle.

Answer

In histograms, there is no gap between two adjacent rectangle.$ ($True$)$

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Question 81 Mark

In histograms the breadth of a rectangle is meaningless.

Answer

In histograms the breadth of a rectang’e is meaningless. $($False$)$
Correct : The rectangles are of equal width.

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Question 91 Mark

There is no difference between bar graphs and histograms.

Answer

There is no difference between bar graphs and histograms. $($False$)$
Correct : Histogram is for continued classed and in bar graph there is gap between the two bars.

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Question 101 Mark

The class mark of $25-35$ is $30.$

Answer

The class mark of $25-35$ is $30. ($True$)$

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Question 111 Mark

The class size of class $20-30$ is $10$.

Answer

The class size of class $20-30$ is $10. ($True$)$

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Question 121 Mark