Question

a dra. clayton, uma pediatra, pesou todas as crianças que visitaram recentemente seu consultório.

pesos das crianças (lbs)
caule folha
3 | 9
4 | 3 4 9
5 | 4
6 | 0 0 5 5 7

quantas crianças pesavam pelo menos 40 libras?

□ crianças

Explanation:

Step1: Analyze each stem (Caule)

• Stem 3: The leaf is 9, so the weight is 39 lbs (less than 40, so exclude).
• Stem 4: Leaves are 3, 4, 9. Weights are 43, 44, 49 lbs (all ≥40, count = 3).
• Stem 5: Leaf is 4. Weight is 54 lbs (≥40, count = 1).
• Stem 6: Leaves are 0, 0, 5, 5, 7. Weights are 60, 60, 65, 65, 67 lbs (all ≥40, count = 5).

Step2: Sum the counts

Add the counts from each stem: \( 3 + 1 + 5 = 9 \).

Answer:

9