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Aleks [24]
3 years ago
7

A fair spinner is divided into 3 equal sections : red blue and green, it is spun 5 times what is the probability of getting red

twice
Mathematics
1 answer:
Sav [38]3 years ago
5 0

Answer:

80/243

or

.329218107

Step-by-step explanation:

This is a binomial distribtuion

THe probability of red= 1/3

the probability of not red= 2/3

Probability of getting exactly 2 reds in 5 spins

{5\choose2}*\frac{1}{3}^2*\frac{2}{3}^3=.329218107

or

80/243

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Answer:

y = -(5/4)x - (1 3/4)

Step-by-step explanation:

A line parallel to y= -(5/4)x - 6 will have the same slope, -(5/4), but a different value for the y-intercept, which is -6 in this equation.  This means we can write:

y = -(5/4)x + b

As klong a b is not -6, the line will be parallel.  But we are told that point (5,-8) must be on the new line.  That means we need to select a value of b to make that happen.  By shifting b, we can move the straight line up or down.  To move it so that it goes through (5,8), enter that point in the equation and solve for b:

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Step-by-step explanation:

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We have y = (1/2)x + 5

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Finally, 2y -30 = x is the equation of second line.


3 0
4 years ago
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