4.4 x 10^-4
Hope this helps!
Answer:
A. accidents per unprotected left turn per intersection
Explanation:
The question is asking about "accidents at intersections," so the answer must be related to this.
It is said that accidents happen at intersections because cars coming from different directions are doing different activities. This causes a greater potential to cause an accident. An "unprotected left turn" happens when <u>there is no corresponding light (traffic light) that signals the left turn.</u> This is common among intersections.
The installation of the "left turn green arrow" is helpful for areas with unprotected left turn that may be potential for causing an accident. So among the choices above, letter A (accidents per unprotected left turn per intersection) is the best choice.
2 3/4 / 1/3 = 11/4 / 1/3 = 11/4 * 3 = 33/4
= 8 1/4 miles per hour
Answer:
294in²?
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that a researcher is planning to construct a one-sample z ‑confidence interval for a population mean
The confidence interval would be calculated as
Here margin of error = Z critical * std error determines the size of the confidence interval
Margin of error dependds on i) Z critical value ii) std deviation
iii) Inversely to square root of sample size.
Hence margin of error would be small if
.B) The researcher increases the sample size
C) The researcher lowers the confidence level
E) The population standard deviation turns out to be lower than expected.
