Which statement can be modeled using the expression x-5?
2 answers:
Answer:
A. the difference of Jaime’s height and 5
Step-by-step explanation:
We have the expression:
The "-" sign represents a subtraction, or a difference.
So if is Jaime's height, when you substract the
what you have as a result is the difference between Jaime's height and 5.
This discards options B, C and D since they speak of adding or increasing Jaime's height.
The answer is: A. the difference of Jaime’s height and 5
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Answer:
75% confidence interval is 91.8±16.66. That is between 75.1 and 108.5 pounds.
Step-by-step explanation:
The question is missing. It is as follows:
Adult wild mountain lions (18 months or older) captured and released for the first time in the San Andres Mountains had the following weights (pounds): 69 104 125 129 60 64
Assume that the population of x values has an approximately normal distribution.
Find a 75% confidence interval for the population average weight μ of all adult mountain lions in the specified region. (Round your answers to one decimal place.)
75% Confidence Interval can be calculated using M±ME where
- M is the sample mean weight of the wild mountain lions (
)
- ME is the margin of error of the mean
And margin of error (ME) of the mean can be calculated using the formula
ME= where
- t is the corresponding statistic in the 75% confidence level and 5 degrees of freedom (1.30)
- s is the standard deviation of the sample(31.4)
- N is the sample size (6)
Thus, ME= ≈16.66
Then 75% confidence interval is 91.8±16.66. That is between 75.1 and 108.5