Question

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a cookie factory monitored the number of broken cookies per pack yesterday. broken cookies per pack stem leaf 2 1 2 3 3 4 5 4 2 3 7 9 5 0 0 6 4 7 1 2 5 8 6 7 9 3 9 how many packs had at least 78 broken cookies but less than 98 broken cookies? packs

Explanation:

Step1: Identify relevant data

We need to look at values from 78 (inclusive) to 98 (exclusive) in the stem - and - leaf plot.

Step2: Count the values

In the 7 - stem, values 78 and above: 0 values as the leaves are 1, 2, 5. In the 8 - stem, the values are 86, 87 (2 values). In the 9 - stem, the values are 93, 99 (we count 93 as 1 value since 99 is not in our range).

Answer:

3