Define the events
A = spinning any number but 4 (ie not getting 4)
B = flipping tails
For each event, the probabilities are:
P(A) = 4/5 because there are four numbers that aren't "4" out of five numbers total
P(B) = 1/2 assuming the coin is fair and each side is likely
P(A and B) = P(A)*P(B) is possible because the two events A and B are independent
So,
P(A and B) = P(A)*P(B)
P(A and B) = (4/5)*(1/2)
P(A and B) = (4*1)/(5*2)
P(A and B) = 4/10
P(A and B) = 2/5
The answer as a fraction is 2/5
In decimal form, the answer is 0.4
Answer:
none of the above...
Step-by-step explanation:
terrible question
So out of 100 questioned 71 said Dallas Cowboys , that means 71% did , now we have to work out 71% of 1200 which is 852
Answer:
126
P = -------------
2 - r
Step-by-step explanation:
Solve for P: P(2-r)-17=109
Combining the constant terms:
P(2 - r) = 126
Dividing both sides by (2 - r) isolates P:
126
P = -------------
2 - r
Answer:
x^2+y^2=r^2 is quation of circle whose centre is (0,0)