Rules for rounding is if the previous place is 5 or more, you round up. If it is less than 5, you round down. The thousandths place is five, so you would round up. Now you would also round the ones, since the tenths is at 9. So it would be 60.0
Answer:
A 2x+6
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Step-by-step explanation:
- 1.25 × 10^-4
- 2.0 × 10^-4
- 3.25×10^-6
Answer:
95%
Step-by-step explanation:
Margin of error is the standard error times critical value.
ME = SE × CV
The standard error for a sample mean is:
SE = σ / √n
SE = 25 / √100
SE = 2.5
If the margin of error is ±5, then the critical value is:
5 = 2.5 CV
CV = 2
Since the sample size is greater than 30, we can approximate the confidence level using normal distribution. The percent between -2 and 2 standard deviations is 95%.
Therefore, there is a 95% probability the sample mean is within ±5 of the population mean.