Step-by-step explanation:
<h3>(1)</h3>
The probability of landing on the color gray ONCE
= 2/7
Since it is spun 35 times, the expected number of times that it lands on a gray will be
(2/7 × 35) = 10 times
<h3>(2)</h3>
The probability of landing on the color black ONCE
= 1/7
Since it is spun 105 times, the expected number of times that it lands on a black will be
(⅐ × 105) = 15 times
The formula is:
Expected value = (Number of spinning)×(probability of landing on a colour)
Answer:
Step-by-step explanation:
Answer:
C-independent
D- dependent
Step-by-step explanation:
Answer:
Triangle=89.9 + 50.1 + 40(flat)= 140+40=180 and 180 is a straight angle ABC
\ /
89.9+50.1=140
Answer:
from top to bottom = c, d, a, b
Step-by-step explanation:
