Answer:
7/12
Step-by-step explanation:
12 sided die has 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 as the sides.
Two digits are 10, 11, and 12.
Even numbers are 2, 4, 6, 8, 10, and 12.
So two digits or even numbers are 2, 4, 6, 8, 10, 11, and 12. (7 total numbers)
P(Two digits or even) = 7/12
16,17,18,19
one guy guessed. probably using a calculator
another guy took the 4th root of 100,000 and rounded down a number
(a third way started like this
n*(n+1)*(n+2)(n+3)=100000
15.6
First, multiply the midpoint of each class by its frequency, as follows:
Class midpoint frequency midpoint*frequency
0-9 4.5 24 4.5*24 = 108
10-19 14.5 20 14.5*20 = 290
20-29 24.5 32 24.5*32 = 784
Total 76 1182
The mean is computed as the division between the addition of the "midpoint*frequency" column by the addition of "frequency" column.
mean = 1182/76 ≈ 15.6
1.45934 × 10^5
