Answer:
Since the sample size is larger than 30, the cognitive psychologist can assume that the sampling distribution of M will be approximately normal.
Step-by-step explanation:
We use the central limit theorem to solve this question.
The Central Limit Theorem estabilishes that, for a random variable X, with mean 
and standard deviation 
, a sample size larger than 30 can be approximated to a normal distribution with mean and standard deviation 
So
Since the sample size is larger than 30, the cognitive psychologist can assume that the sampling distribution of M will be approximately normal.
Answer:
Step-by-step explanation:
Frequency of Section 1 is 28 and total number of frequencies is 80.
- P(Section 1) = 28/80 = 7/20
I think its the second one, the answer does not have a definite and, and cannot be put into a ratio.
825 miles because 495 divided by 9 is 55 so 55=1 mile and 15 miles=825
Answer:
a = 15
Step-by-step explanation:
screenshots below should explain the answer :)
