Help! Which estimate is closest to the actual value of ( 2.99548 ) ⋅ ( 1.8342 )?
1 answer:
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Answer:
a: 0.8884
b: 0.9934
Step-by-step explanation:
We have µ = 300 and σ = 70. The sample size, n = 125.
For the sample to be within 8 units of the population mean, we would have sample values of 292 and 308, so we want to find:
P(292 < x < 308).
We need to find the z-scores that correspond to these values using the given data. See attached photo 1 for the calculation of these scores.
We have P(292 < x < 308) = 0.8884
Next we want the probability of the sample mean to be within 17 units of the population mean, so we want the values from 283 to 317. We want to find
P(283 < x < 317)
We need to find the z-scores that correspond to these values. See photo 2 for the calculation of these scores.
We have P(283 < x < 317) = 0.9934
If you have two statements p and q and 
is
true, then 
is also true.
In your case, statements are p - "x is odd" and q - "2x is even".
Then
- "x is not odd" and 
- "2x is not even."
Hence sounds as: "If 2x is not even, then x is not odd".
Answer: correct choice is D.
In your case, statements are p - "x is odd" and q - "2x is even".
Then
Hence
Answer: correct choice is D.