Answer:
27+63=90
9(3+7) is the same as 27+ 63
Answer:
4.589×10to the power of -11
Step-by-step explanation:
X^2 + 4x + 8 = 0
( x + 2 ) ( x + 2 ) = 0
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Relative frequency is the absolute frequency (i.e. the number of times of the wanted result) divided by the total number of events.
In this case you have to calculate: the number of heads that came up divided by the number of times the coin was flipped.
Number of times the coin was flipped: 20
Numbef of times head came up: 7
Relative frequency: 7 / 20 = 0.35, which is the option B.
