Well, If Sam is 5, then his brother would be 15. When Sam is 20, his brother would be exactly 30 years old.
Answer:
Step-by-step explanation:
Previous concepts
The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
Let X the random variable who represents the bio/total carbon ratio. We know from the problem that the distribution for the parameters for the random variable X are:
We select a sample of n=35 nails. That represent the sample size.
From the central limit theorem we know that the distribution for the sample mean is given by:
So on this case :
Answer:
4/3
Step-by-step explanation:
Slope is calculated by so now you pul the points (10,2) and (19,14) into that.
=
12/9 can be simplified to be 4/3
Answer:
x = 7.7
Option B
Step-by-step explanation:
∴ value of x is 7.7
12/16 which would reduce to 6/8 which can also reduce further to 3/4! :) so the final answer is 3/4.