Question
$\triangle PQR \sim \triangle PAB , m \angle P =60^{\circ}, PQ =6 cm, PR =4 cm$. Construct $\triangle PAB$, if $PQ : PA =3: 2$.
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→|
Class interval
|
50-70
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70-90
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90-110
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110-130
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130-150
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150-180
|
|
Frequency
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A box contains cards numbered 3, 5, 7, 9, ..., 35, 37. A card is drawn at random from the box. Find the probability that the number on the card is a prime number.
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Variable
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10-20
|
20-30
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30-40
|
40-50
|
50-60
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60-70
|
70-80 |
|
Frequency
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12
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30
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65
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25
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18 |
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