Are you missing an option? The answer should be -2/3 (I just calculated it numerous times)
Answer:
21,7 - yes
28,3 - no
17,3 - no
20,4 - yes
55,5 - yes
15,5 - yes
26,4 - no
32,8 - yes
48,7 no
60,2 - yes
79,4 - no
81,3 - yes
Step-by-step explanation:
hope that helps
Mu=80, sigma=39, X=85
Z=(X-mu)/sigma = 5/39=0.128=0.13
P(X<=85)= 0.5517 (from Z-table)
so, P(X>85)=1-0.5517=0.4483 approx. thats 44.8% probability.
Answer:
say what
Step-by-step explanation:
Answer:
<h3>46.</h3>
<u>Total number in favour:</u>
<u>Probability:</u>
- P(favour, A) = 128/224 = 4/7
<h3>47.</h3>
<u>Total number in against:</u>
<u>Probability:</u>
- P(against, not B) = 32/80 = 2/5