The standard deviation is a measure of a collection of values' variance or dispersion. The true mean bill for a customer at Burger Palace with 95% confidence is $13.38.
<h3>What is a standard deviation?</h3>
The standard deviation is a measure of a collection of values' variance or dispersion. A low standard deviation implies that the values are close to the set's mean, whereas a high standard deviation shows that the values are spread out over a larger range.
Given that the Sample mean (
) is $14.30, the Sample size(n) is 24 customers, the Standard deviation(σ) is 2.30, while for a 95% confidence interval the Z-score is 1.960. Therefore, the true mean can be written as,
μ = 13.3788 ≈ 13.38
Hence, the true mean bill for a customer at Burger Palace with 95% confidence is $13.38.
Learn more about Standard Deviation:
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Answer:
-55
Step-by-step explanation:
Substitute the given numbers for the variables; a = -6, b = -5
5(-6)+5(-5)
-30-25=-55
Hopefully this helps!
The outcomes of rolling fair six sided die is 
. The prime numbers in the above outcomes are 
. The probability of not rolling a prime number is 
.
Each trial is independent.
In the given experiment of 100 trials, the binomial probability model can be used to predict the number of occurrence of non-prime numbers (X). The probability mass function is
. Since 
Answer:
99
Step-by-step explanation:
Answer:
3/28
Step-by-step explanation:
