A. Find the probability that fewer than 33 were alcohol related
B. Find the probablity that between 40-60, inclusive, were alcohol related.
C. Find the probablity that at least 40 were and atleast 40 were NOT alcohol related.
2007-11-01 11:26:59 · 3 answers · asked by chrissyverr 1 in Education & Reference ➔ Homework Help
You are missing confidence level. The calculation requires a mean number (your .45) and a confidence level or margin of error. If it is 45% +/- 1%, a would be very low, b would be very high, c would be very high. If it were 45% +/- 20% then a would be higher and b and c not as high.
If 45% represented 9 of 20, that would not have a high level of confidence. If 45% represented exactly 45,000 of 100,000, the confidence level would be very exact.
Is it a standard deviation?
2007-11-01 11:47:22 · answer #1 · answered by Menehune 7 · 0⤊ 0⤋
do if that's 45% then the other accedents were caused by solber people, witch means it's really the solber people we should look out for.
2007-11-01 11:31:55 · answer #2 · answered by Anonymous · 0⤊ 1⤋
a
2007-11-01 11:28:39 · answer #3 · answered by remote control 1 · 0⤊ 1⤋