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3 years ago

a bag contain 2 red balls and 2 black balls. what is the probability of picking out black ball out of the bag?

Mathematics

2 answers:

soldier1979 [14.2K]3 years ago

7 0

Answer:

50% chance

Step-by-step explanation:

since half of the balls are red and half are black there will be a 50%chance of picking a black one from the bag

Degger [83]3 years ago

4 0

Answer:

2/4

Step-by-step explanation:

2+2=4 so 2/4

50%

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3 years ago

Each game costs $1.25 and each ride costs $2.75. A boy spent $20.25 all together at the carnival and the number of rides he went

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3 games and 6 rides

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3 years ago

A woman is randomly selected from the 18-24 age group. For women of this group, systolic blood pressures (in mm Hg) are normally

dybincka [34]

Answer:

0.0274

Step-by-step explanation:

The mean is $\mu =114.8$ and the standard deviation is $\sigma =13.1.$

Calculate

$Z=\dfrac{X-\mu}{\sigma}$

for $X=140:$

$Z=\dfrac{140-114.8}{13.1}\approx 1.9237.$

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3 years ago

Read 2 more answers

What is the slope of the line that passes through these two points (-2,4) (3,4)?

lisabon 2012 [21]

Answer:

Step-by-step explanation:

m=y-y1/x-x1

m=4-4/-2-3=0/-5

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3 years ago

Mr. Drysdale earned 906.25 in interest in one year on money that he had deposited in

VikaD [51]

Answer: Mr Drysdale deposited 14,500

Step-by-step explanation:

Using the simple Interest formula

Simple Interest = Principal(Initial Money) * Interest Rate * Time Period

I = P*R*T

I = PRT

To get P which is the initial money he deposited, we divide both sides by RT

I/RT = PRT/RT

I/RT = P

Therefore the money deposited

P = I/RT

Interest (I)= 906.25

Interest Rate (R)= 6.25% = { converting percentage to decimal} (6.25/100)= 0.0625

Time Period (T) = 1 year

Principal (P)= ?

P= I/RT

P= 906.25/(0.0625 * 1)

P= 906.25/0.0625

P= 1450

The money he deposited in his local bank is 14,500

5 0

3 years ago