Joey went to a toy show at the local community center. He bought action figures and trading cards. He spent a total amount of $3
1 answer:
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Answer:
c. normal probability distribution
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem establishes 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:
By the Central Limit Theorem, it is a normal distribution, so option c.
Answer:
Option B,
Step-by-step explanation:
<u>Step 1: Simplify the exponent</u>
<u>Step 2: Simply the expression</u>
Answer: Option B,