Answer:
4
Step-by-step explanation:
He should add 4 black blocks because there are a total of 4 other blocks, and in order to have a probability of 50%, the number of black blocks needs to be equal to the total number of the other colored blocks.
Answer:
The correct answer is A.
Step-by-step explanation:
Decision variable are the numbers which are determined by the decision makers. This enables to identify the different possible events that might occur. The decision makers then select a number and identifies the possible occurrence of the events.
Answer:
Step-by-step explanation:
Hi, let me help you out.
First I'm going to turn the verbal phrase into an algebraic phrase...
21+n=37. here n is the unknown number
Next, I believe you need to find what n equals.
This can be done by subtracting 21 from both sides.
n=37-21
n=16
Thus the number we need is 16.
_________________
Hope I helped. Best wishes.
Answer: i just need points
Step-by-step explanation: i just need points
Answer:
99% (two-sided) confidence interval for the true average echo duration µ is
(0.73<µ<0.89)
Step-by-step explanation:
Confidence Interval can be calculated using M±ME where
- M is average radar echo duration (0.81 sec)
- ME is the margin of error from the mean
And margin of error (ME) around the mean can be calculated using the formula
ME= where
- z is the corresponding statistic in 99% confidence level(2.58)
- s is the standard deviation of the sample(0.34)
- N is the sample size(110)
Then ME= ≈0,084
99% Confidence interval would be 0.81±0,08 or (0.73, 0.89)