Answer: Evaluate the expression when y is 2 = 12
Evaluate the expression when y is 7 = 42
Step-by-step explanation:
Answer:
Approximately normal
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean and standard deviation , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean and standard deviation .
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean and standard deviation
In this question:
As the sample size is above 30, even though the underlying distribution is right-skewed, the shape of the sampling distribution of the sample means will be approximately normal.
A or 16/784
because there are 28 chips total 4 of them are green so it is 4/28
but you pick twice so you square it (4/28)^2=16/784
Answer:
45 miles/hour
Step-by-step explanation:
We need the speed in miles per hour so we need to changes minutes to hours
20 minutes * 1 hour /60 minutes = 1/3 hour
Speed = distance/ time
= 15 miles/(1/3 hour)
=15 *3 miles/hour
= 45 miles /hour
Answer:
4 feet.
Step-by-step explanation: