Jared gets 10 heads when flipping a weighted coin 12 times. Based on experimental probability, how many of the next six flip sho
uld Jared expect to come up heads?
1 answer:
Answer:
5
Step-by-step explanation:
Experimental probability = number of tunes an event occurred / total number of trials
Experimental probability of getting head :
10 /12 = 0.833333
Expected number of heads from next 6 flips :
Experimental probability = expected number of heads / number of trials
0.833333 = x / 6
0.83333 * 6 = 5
5 times
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The interior angel of 7 will be angel 4
∠7 + ∠4 = 180°
Ln(5^x) = ln(81.2)
xln(5) = ln(81.2)
x= ln(81.2)/ln(5)
x= ln(406/5)/ln(5)
x = ln(406) - ln(5)/ln(5)
log (ab) = log(A) + log (B)
ln(2) +ln7 + ln(29 - ln(5)/ln(5)
x = 2.7320 (4dp)
Answer:
A ≈ 69.5°
Step-by-step explanation:
Given the triangle is right use the cosine ratio to find A
cosA = 
= 
= 
, thus
A = 
( ) ≈ 69.5° ( to 1 dec. place )
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