A company makes muesli which contains nuts and sultanas. They counted the number of nuts in 50 individual serving packets. They drew a table. A complete the table and b calculate an estimate for the mean
Answers
Given : A company makes muesli which contains nuts and sultanas.
They counted the number of nuts in 50 individual serving packets.
They drew a table.
Number Midpoint Number of
of nuts (x) packets (f) f.x
4 - 6 5 3 15
7-9 8 9
10 - 12 11 12
13 - 15 14 17
16 - 18 17 9
50
To Find :
complete the table
calculate an estimate for the mean
Solution:
Number Midpoint Number of
of nuts (x) packets (f) f.x
4 - 6 5 3 15
7-9 8 9 72
10 - 12 11 12 132
13 - 15 14 17 238
16 - 18 17 9 133
50 590
Mean ∑ fx /∑f
= 590/50
= 59/5
= 11.8
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