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3 years ago

A fair coin is tossed three times in succession. Find the probability if getting exactly one tail

Mathematics

1 answer:

frosja888 [35]3 years ago

3 0

Answer:

If a fair coin is tossed three times, sample = 2^3 = 8 (hhh, hht, hth, thh, htt, tht, tth, ttt) where h=head and t=tail.

Probability of getting one:

Outcomes with one head (h) = 3

P(1 h) = 3/8 = 0.375

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At East Middle School, there are 58 left-handed students and 609 right-handed students. The numbers of left- and right-handed st

EastWind [94]

Answer:

C. Left-handed: 48, Right-handed: 504

D. Left-handed: 30, Right-handed: 315

Step-by-step explanation:

We are given that there are 58 left-handed students and 609 right-handed students at East Middle School and these numbers of students are proportional to the number of left and right handed students at East Middle School.

Given the above information, we are are to determine which two options could be the the numbers of left-handed and right-handed students at West Junior High.

Ratio of right handed to left handed students at East Middle School = $\frac{609}{58} = 10.5$

Checking for ratios of the given options:

A. $\frac{483}{42} =11.5$

B. $\frac{378}{28} =13.5$

C. $\frac{504}{48} =10.5$

D. $\frac{560}{56} =10$

E. $\frac{315}{30} =10.5$

Therefore, the possible numbers of left-handed and right-handed students at West Junior High could be C. Left-handed: 48, Right-handed: 504 and D. Left-handed: 30, Right-handed: 315.

7 0

2 years ago

Read 2 more answers

Find the circumference of a circle rounded to the nearest tenth with a diameter of 4 inches

k0ka [10]

Answer:

12.6

Step-by-step explanation:

Circumference is πd. So...

(3.14*4)

12.56

12.6

Hope this helps and have a nice day ~(^_^)~

8 0

3 years ago

I need help with this please

Levart [38]

Yu can you think how many triangles fit in that parallelogram? The answer is six. four in the central rectangle and two at the ends, then the area of the parallelogram will be six times greater than that of the triangle in that graph. Good luck! M.

7 0

3 years ago

Solve the equation -6a(-5-2a)=0

Anuta_ua [19.1K]

Answer:

A=0,-2 1/2

Step-by-step explanation:

8 0

3 years ago

Tell whether the ordered pair is a solution to the system.

DerKrebs [107]

Answer:

Step-by-step explanation:

no. substitute -1 for x and -2 for y.

the first one is -1 - 10

this equals -11 not 3

7 0

2 years ago

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