Answer:
<u>16</u>
Step-by-step explanation:
We need to find 2 numbers that have a difference of 8.
Let take's 16 and 8.
As we know :
⇒ 16 - 8
⇒ <u>8</u>
<u />
The larger of these 2 numbers is <u>16</u>
Answer:
No, it is incorrect. The line should be solid, not dotted, because it's a ≤ sign, not a < sign.
Solution :
The data is normally distributed.
The standard deviation is 18 days
Here the data is normally distributed and 54 days is 3 days of standard deviation.
Therefore, the percentage of the births that would be 
within the 54 days of the mean 
length is given by :
= P( -3 < Z < 3)
= 0.9544
= 95 %
Therefore, about 95% of the births would be within 54 days of the men length.
Permutation: In a race of 10 students, find the number of ways students can finish 1st, 2nd, and 3rd. In this case the order matters, so it is a permutation.
10 x 9 x 8 = 720 ways
Combination: In a class of 10 students, find the number of ways a group of 3 students can be selected to win a prize. In this case the order doesn't matter, so it's a combination.
10 x 9 x 8 / (3 x 2 x 1) = 120 ways
