The final probability is the weighted average of the playing probabilities calculated over the possible weather options:
P(john practices cello; given that it rains) * P(it rains) +
P(john practices cello; given that it does not rain) * P(it does not rain) =
0.6 * 0.7 + 0.4 * 0.3 = 0.54
The probability is 54%
Answer:
12
Step-by-step explanation:
(5x+5)+(115)=180
180-120=60
60/5=12
Answer:
Which formula should be used to calculate the variance? C
What is the variance? 58.5
