Answer:
36 riders in 16 minutes, 54 riders in 24 minutes, and 72 riders in 32 minutes.
Step-by-step explanation:
The roller coaster can accommodate 9 riders every 4 minutes. 36 riders in 16 minutes, 54 riders in 24 minutes, and 72 riders in 32 minutes all follow the common ratio.
Answer:
b
Step-by-step explanation:
make a formula, its the easiest way to solve problems like these also its very efficent
Solution: We are given:
Now let's find the estimated value of standard deviation using the range rule of thumb. According to range rule of thumb, the estimate of standard deviation is:
Therefore the estimated standard deviation is 0.690
is this an acceptable approximation?
Answer: c. Yes, because the error of the range rule of thumb's approximation is less than 15%.
Explanation:
The difference between estimated standard deviation and actual standard deviation is:
0.807 - 0.690 = 0.117
Now let's find the percentage of error
.
Therefore, the error of the range rule of thumb's approximation is less than 15%.
The answer is rational. It is 1.1
Answer:
P(X = 2) = 0.22.
Step-by-step explanation:
We are given with the following probability distribution below;
X P(X)
1 0.05
2 0.22
3 0.35
4 0.30
5 <u> 0.08 </u>
Total <u> </u><u> 1</u><u> </u>
As the sum of all the probabilities is equal to 1, which means that this is a valid probability distribution.
Now, from the table above P(X = 2) = 0.22.
Hence, the probability that the X is equal to 2 is 0.22 or 22%.
