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Question
Oliver records the time (in minutes) it takes him to get to school in the morning every day for 2 weeks.
His results are as shown.
Key: 2 | 8 = 28
On how many days was his commute time less than 31 minutes?
Oliver records the time (in minutes) it takes him to get to school in the morning every day for 2 weeks.
His results are as shown.
On how many days was his commute time less than 31 minutes?
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Solution
The correct option is D 5
Following the key, the above stem and leaf diagram can be read as:
28, 28, 30, 30, 30, 31, 32, 32, 32, 34, 37, 37, 40, 41
Thus, we can see that the number of inputs less than 31 are 28, 28, 30, 30 and 30.
Hence, on 5 days, his commute time was less than 31 minutes.
Following the key, the above stem and leaf diagram can be read as:
28, 28, 30, 30, 30, 31, 32, 32, 32, 34, 37, 37, 40, 41
Thus, we can see that the number of inputs less than 31 are 28, 28, 30, 30 and 30.
Hence, on 5 days, his commute time was less than 31 minutes.
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