Since the problem states "at least" we need to also find probability of 3 H or 4 H or 5 H
Now find the probability of flipping a head 4 times;

⁴
= (1/16)
Now probability of flipping a head 3 times: (4C3)(1/2)⁴ = 4/16
Probability of flipping a head 2 times; (4C2)(1/2)⁴=6/16
(1/16)+(4/16)+(6/16)=11/16
Probability of flipping a fair coin 4 times with at least 2 heads is 11/16.
Hope I helped :)
Answer:
$15 is 37.5% of $40.
Step-by-step explanation:
3:30
Half past means 30 min after
Hope this helped!
(2,-8) (3,-13) because if you plug them all in there the only ones that come out right
Then hiked it 3 more times how many miles did she hike?