Which inequality represents the sentence below? Two more than a number is less than 14. 2 + n less-than-or-equal-to 14 2 + n les
2 answers:
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Answer:
30.56%
Step-by-step explanation:
Let the sides on each dice be labeled as 1, 2a, 2b, 2c, 3, 4.
The sample space for the sum of the values being 4 is:
S={1,3; 3,1; 2a,2a; 2a,2b; 2a,2c; 2b,2a; 2b,2b; 2b,2c; 2c,2a; 2c,2b; 2c,2c}
There are 11 possible sums out of the 36 possible outcomes that result in a sum of 4. Therefore, the probability their total is 4 is:
There is a 30.56% probability that their sum is 4.
Answer:
B
Step-by-step explanation:
the mean is calculated as
mean =
this year's mean = =
= 4.1
last year's mean = =
= 3.1
difference = 4.1 - 3.1 = 1