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3 years ago

What is the chance that for 30 random spins, 29 will be up??

Mathematics

2 answers:

Makovka662 [10]3 years ago

7 0

1/2 I believe because you either have up or down either that or its 29/30 but i really do believe its 1/2

Dovator [93]3 years ago

6 0

Formula for Probability is:
P(n)=N!/(n! (N-n)! p^n q^(N-n)

where,
p is the probability of getting one outcome=1/2 
and
q=probability of getting the other outcome=1/2
Putting the values in the equation:
P(29)=30!/(1! 29!) (1/2)^30
P(29)=30 x (1/2)^30 = 2.8x10^(-8)
In percentage:0.0000028%

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asambeis [7]

Answer:

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Step-by-step explanation:

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3 years ago

What are the slope, m, and y-intercept, (0,b), of the line described by the equation 3x+6=12

alina1380 [7]

Answer:

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3 years ago

5. Write two inequalities to compare -17 and -22.

galina1969 [7]

Answer:

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3 years ago

Which of the following points is a solution of y ≤ -|x| - 1? (-1, -3) (0, 0) (1, -1)

alexdok [17]

Y + 1 $\leq$ -|x|
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3 0

4 years ago

Read 2 more answers

Show that 4(m + 7) + (m + 3)^2 = (m + 3)(m + 7) + 16

anygoal [31]

Step-by-step explanation:

$4(m+7)+(m+3)^2=(m+3)(m+7)+16\\\\L_S=4(m+7)+(m+3)^2\\\\\text{use the distributive property}:a(b+c)=ab+ac\\\text{and formula}:\ (a+b)^2=a^2+2ab+b^2\\\\L_S=(4)(m)+(4)(7)+m^2+2(m)(3)+3^2\\\\L_S=4m+28+m^2+6m+9\qquad\text{combine like terms}\\\\L_S=m^2+(4m+6m)+(28+9)\\\\L_S=m^2+10m+37$

$R_S=(m+3)(m+7)+16\\\\\text{use FOIL}:(a+b)(c+d)=ac+ad+bc+bd\\\\R_S=(m)(m)+(m)(7)+(3)(m)+(3)(7)+16\\\\R_S=m^2+7m+3m+21+16\qquad\text{combine like terms}\\\\R_S=m^2+(7m+3m)+(21+16)\\\\R_S=m^2+10m+37\\\\\boxed{L_S=R_S}$

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3 years ago