Answer:
Starting average customer rating was 5.
Step-by-step explanation:
Equation representing the average customer rating at Austin's bakery over time is,
y = 0.25x + 5
Here, 'x' represents the time or duration.
Starting average customer rating means value of y at x = 0.
Therefore, y = 0.25(0) + 5
y = 5
Starting average customer rating was 5.
Answer:
a) 2.66
b) 9
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 .
part A: what is the standard deviation of the sampling distribution of x hat? show your work.
We have that . So
PartB: what does the sample size need to be if you want the standard deviation of the sampling distribution of x hat to be 2.8?
This is n when . So
Answer:
Step-by-step explanation:
We are given an expression to solve for the displacement (x), so in order to find velocity (v), we need to differentiate the function.
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Solving :
⇒
⇒
⇒
⇒
Using this equation, we can find the velocity if a value of t is given.
Answer:
Step-by-step explanation:
Given
Data: 865 1010 655 565 1465 1110 710 765 820 1310 555 1065
Required
Determine the range
Range is calculated as thus:
From the data,