In a blood donation camp following was the observation of 15 people's blood group. A, B, AB, A, B, A, A, B, O, A, AB, B, A, B, AB. Make an ungrouped frequency distribution and find the rarest blood group.

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Solution

$\begin{matrix} B L O O D G R O U P & F R E Q U E N C Y A & 6 B & 5 A B & 3 O & 1 T O T A L & 15 \end{matrix}$

Rarest blood group is O since its frequency is least

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Q. In a blood donation camp following was the observation of 15 people's blood group:
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In a blood donation camp following was the observation of 15 people's blood group. A, B, AB, A, B, A, A, B, O, A, AB, B, A, B, AB. Make an ungrouped frequency distribution and find the rarest blood group.

BLOODGROUPFREQUENCYA6B5AB3O1TOTAL15 Rarest blood group is O since its frequency is least

$\begin{matrix} B L O O D G R O U P & F R E Q U E N C Y A & 6 B & 5 A B & 3 O & 1 T O T A L & 15 \end{matrix}$

Rarest blood group is O since its frequency is least