All categories

2 years ago

Suppose a die is tossed 5 times. what is the probability of getting exactly 2 fours?

Mathematics

1 answer:

Tasya [4]2 years ago

7 0

Answer:

the probability of getting exactly 2 fours is 0.16

Step-by-step explanation:

The probability of obtaining a number that is four = ¹/₆

The probability of obtaining a non 4 number = 1 - ¹/₆ = ⁵/₆

The number of ways 2 fours can be arrange in five numbers = ⁵C₂ = 10 ways

If the die is tossed five times, the probability of the events is calculated as;

P = 10 x (¹/₆)² x (⁵/₆)³

P = 10 x (¹/₃₆) x (¹²⁵/₂₁₆)

P = 10 x 0.02778 x 0.5787

P = 0.16

Therefore, the probability of getting exactly 2 fours is 0.16

You might be interested in

Can you help me????????

aev [14]

Check the picture below.

now, if AC is that much, recall, BD is the midsegment, thus AB = BC, so AB is just one of the equal halves of AC, so, AB is AC/2.

8 0

3 years ago

O 12 units<br> O 15 units<br> O 20 units<br> O 25 units

nadezda [96]

Answer:

12 units

Step-by-step explanation:

Because the two triangles are similar:

$\dfrac{x}{9}=\dfrac{16}{x} \\\\\\\dfrac{x^2}{9}=16 \\\\\\x^2=144 \\\\\\x=12$

Hope this helps!

3 0

2 years ago

Rearrange the quadration equation so that it is equal to 0. Then factor the equation.

Alenkasestr [34]

What is the equation?

4 0

3 years ago

282736.2816×296.092÷2917=?

Gnom [1K]

Answer:

28699.3318792

Step-by-step explanation:

4 0

2 years ago

5/9 × 8/11 what is the answer

nikitadnepr [17]

Answer:

$\frac{5}{9} \times \frac{8}{11} = \frac{5 \times 8}{9 \times 11} = \frac{40}{99} = 0.4040$

7 0

2 years ago

Read 2 more answers