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Sagot :
Answer:
61
Step-by-step explanation:
mean formula: sum of all terms/number of terms
sum of all terms: 366
31
55
+ 68
70 70 72
---------------------
TOTAL: 366
number of terms: 6
31, 55, 68, 70, 70, 72
366/6 = 61
Answer:
24
Step-by-step explanation:
In a stem-and-leaf plot, each leaf represents a number or piece of data.
Each the leaf will only show the last digit of the number, and the stem will have the rest.
Examples:
stem value of 1 with a leaf value of 2 = 12
a stem value of 3 with a leaf value of 0 = 30
So, this is your plot:
Stems| Leaves
1 | 2 3 5
2 | 8 8
3 | 0
4 | 2
Your data is 12, 13, 15, 28, 28, 30, 42.
Add up all these numbers and divide by the number of leaves.
Sum of data = 12 + 13 + 15 + 28 + 28 + 30 + 42 = 168
Number of leaves = 7
168 ÷ 7 = 24
The mean is the values in the stem-and-leaf plot is 24.
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