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4.
Timothy asked 30 people how long it takes them to get to school.
The table shows some information about his results.
+1
Time (t minutes)
Frequency
0 2
10 8
20 12
30 7
40 1
Work out an estimate for the mean time taken.

Sagot :

Answer: 13 minutes

Step-by-step explanation:

( 0 + 2 + 10 + 8 + 20 + 12 + 30 + 7 + 40 + 1)/10 = 130/10 = 13

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