Answer:
0.778
Step-by-step explanation:
P(an Internet user posts photos that they have taken themselves/they post videos that they have taken themselves)=P(A/B)=?
According to conditional probability definition,
P(A/B)=P(A∩B)/P(B)
P(A)=0.54, P(B)=0.36, P(A or B)=0.62.
P(A or B)= P(A) +P(B) -P(A∩B)
P(A∩B)=P(A)+P(B)-P(A or B)
P(A∩B)=0.54+0.36-0.62
P(A∩B)=0.9-0.62
P(A∩B)=0.28.
P(A/B)=0.28/0.36
P(A/B)=0.778
So, the conditional probability that an Internet user posts photos that they have taken themselves, given that they post videos that they have taken themselves is 0.778.
Answer:
first 25%
Step-by-step explanation:
A quartile is a quarter, so the first 25% falls between the minimum and lower quartile
2200x=1750x
2200x-1750x=0
450x=0
x=0
They always try to trick you with this. Remember anything 5 or above would round up, anything 4 and under would round down. So look for the tenth place. that's the 9. The number to the right is 8 which is greater than 5. That means round up. You can't round it to 0.1 because that takes it back down. So you just move it over. The answer is 1.0.